Sebaceous cyst in cats

Sebaceous adenitis is a destructive inflammatory disease of sebaceous glands. It is uncommon in dogs, with the highest incidence reported in young adult to middle-aged standard poodles, Hungarian vizslas, Akitas, and Samoyeds. An autosomal recessive mode of inheritance is suspected in standard poodles and Akitas.

Sebaceous cyst in cats. A sebaceous cyst—also known as a steatocystoma—is a fluid-filled bump under your skin that develops when the sebaceous (oil) glands in your hair follicles become blocked. These cysts are ...

Sebaceous hyperplasias commonly appear as papillated masses seldom >1 cm in diameter, often with a shiny, keratotic surface. Sebaceous gland adenomas are seen in all domestic animals but are so common in older dogs and cats they can be considered primarily a small animal neoplasm. Coonhounds, English Cocker Spaniels, Cocker Spaniels, Huskies ...

Symptoms. Epidermoid cyst signs and symptoms include: A small, round bump under the skin, often on the face, neck or trunk. A tiny blackhead plugging the central opening of the cyst. A thick, smelly, cheesy substance that leaks from the cyst. An inflamed or infected bump.A sebaceous cyst is a dilation (opening) of the ducts within the sebaceous gland, causing fluid to accumulate. True sebaceous cysts are rare in dogs, but v eterinarians often use the term interchangeably with other types of cysts. Follicular cysts—sac-like structures often associated with the hair follicles—are much more …Cysts (also called sebaceous cyst s) are another common lump that can appear on our pets. They’re caused by the sebaceous gland, which contains oils which maintain your pet’s fur, getting clogged and forming sac-like growths under the skin. These clogged glands can then get infected and irritated.Sebaceous adenoma is a common skin tumor that cats develop as they grow older. They are linked to your pet’s sebaceous glands which produce an oily substance named sebum. While the sebaceous adenoma looks scary, like warts, it is a typical tumor in cats and there is no reason to panic when you find one. It is a non-cancerous tumor that doesn ... Sebaceous cysts fill with sebum and develop in and around sebaceous glands that are associated with hair follicles. These cysts are also prone to secondary bacterial infection. Sebaceous cysts are common in dogs but unusual in cats, with the exception of ‘stud tail’ on the upper side of the tail.

Epidermoid cyst, also known as a sebaceous cyst, is a benign encapsulated, subepidermal nodule filled with keratin material. Although most commonly located on the face, neck, and trunk, epidermoid cysts can be found anywhere including the scrotum, genitalia, fingers, and cases within the buccal mucosa. Cysts may progress slowly and remain present for years. The term sebaceous cyst is commonly ...Epidermoid cysts, also known as epidermal keratin, infundibular, and epidermal inclusion cysts, or congenital cholesteatomas (LLOYD, 1964; TOGLIA.Sebaceous cysts are also known as epidermoid or follicular cysts. Sebum, created by the cat's sebaceous glands on his skin, acts as a lubricant. If there's a blockage in the hair follicles, this substance accumulates, resulting in a cyst. Any cat can develop sebaceous cysts anywhere on the body. Varying in size, these cysts may appear bluish-gray.Print/View PDF. Ceruminous cystomatosis (ie, ceruminous adenoma, apocrine cystadenomatosis) is an uncommon, nonneoplastic disorder of cats. Lesions most commonly affect the concave pinna, external auditory canal opening, and occasionally the auditory canal. To date, it is thought to represent a congenital or degenerative and senile change.Take your cat for a checkup together with your veterinarian should you discover any new lumps or bumps. Eliz A / Shutterstock Sebaceous cysts are benign (non-cancerous) lots that may kind in your cat’s pores and skin, generally on the torso and higher legs. The cysts appear like raised lumps on the floor of the […]A cyst that develops in the top layer of skin (epidermis) Epidermoid cyst (sometimes known as a sebaceous cyst) A cyst that forms in a hair follicle, usually on the scalp. Pilar cyst (also sometimes known as a sebaceous cyst) A cyst in a joint or tendon, most commonly on the wrists, hands and fingers. Ganglion cyst The sebaceous glands secrete oil (sebum) into the hair follicles and onto the skin. Tumors and tumor-like conditions of sebaceous glands are infrequent in cats. Older cats are more likely to develop these tumors than young or middle-aged cats. Sebaceous gland hyperplasia is a benign overgrowth of sebaceous gland cells. These tumors are usually ... For more information on sebaceous cysts see our article here: Sebaceous Cysts in Cats – Cat-World. 5. Mast cell tumors. Mast cell tumors are caused by an over-replication of cells that regulate your cat’s immune response. They can appear in cats of any age and can grow large overnight. Signs: Some of the signs of mast cell tumors in cats are:

Treatment of Sebaceous Cysts in Cats. Aside from surgically removing a sebaceous cyst, there is no definitive treatment. It may be helpful to bathe the cat with a medicated shampoo containing benzoyl peroxide or salicylic acid to keep skin follicles from collecting oil. Benzoyl peroxide can be too drying for some animals causing redness and dry ...Cysts. The definition of a cyst is a fluid filled sack. The most common type of cyst is the sebaceous gland cyst found in the skin of dogs and cats. Cysts can occur anywhere on the body and at any age. Cysts are often dynamic, meaning that they can both increase as well as decrease in size over time. Certain breeds are genetically more prone to ...Feb 9, 2023 · Here’s a look at five different types of cysts that can affect cats: 1. Sebaceous Cyst. A sebaceous cyst is a type of cyst that develops from the sebaceous glands. These are the glands that produce sebum, which is an oily substance that lubricates and waterproofs the skin and hair. Sebaceous cysts are usually small and firm. Causes and Diagnoses of Sebaceous Cysts. Sebaceous cysts occur when a hair follicle is swollen or ruptured, either due to acne, an injury to the skin or a sebaceous duct that’s malformed. Sometimes there’s no apparent cause. Diagnosing sebaceous cysts. A diagnosis of a sebaceous cyst may require only a physical exam.My cat has a sebaceous cyst on his neck that has grown large. 1.12.2018. Rebecca. More than 30 years of companion animal practice. 8,915 Satisfied Customers.

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CAT: Get the latest Caterpillar stock price and detailed information including CAT news, historical charts and realtime prices. Indices Commodities Currencies StocksSebaceous Cysts (epidermal inclusion cysts) - this is the most common type of cyst in cats and appears anywhere on your cat's body. The cysts can be up to 1 inch in size and needs drainage to avoid infection (it is filled with a something called sebum).A sebaceous cyst is a dilation (opening) of the ducts within the sebaceous gland, causing fluid to accumulate. True sebaceous cysts are rare in dogs, but v eterinarians often use the term interchangeably with other types of cysts. Follicular cysts—sac-like structures often associated with the hair follicles—are much more …Isthmic and hybrid or panfollicular cysts are quite common in dogs and rare in cats. Matrical cysts are rare in both dogs and cats. 20 Follicular cysts are firm, usually <2 cm diameter, and may be dermal or subcutaneous. The cysts may have a white, blue, or yellow tinge. Partial or complete alopecia is common.Print/View PDF. Ceruminous cystomatosis (ie, ceruminous adenoma, apocrine cystadenomatosis) is an uncommon, nonneoplastic disorder of cats. Lesions most commonly affect the concave pinna, external auditory canal opening, and occasionally the auditory canal. To date, it is thought to represent a congenital or degenerative and senile change.

Home Remedies For Sebaceous Cysts. 1. Warm Compress. Using hot packs or compress a few times a day can help soothe inflammation around the sebaceous cyst ( 1 ). The heat from the washcloth may enable the cyst to drain the pus, thus relieving pain. You Will Need.Some cats develop cysts that are filled with keratin, a skin protein. These are described as keratinized skin cysts. The cysts are benign and have a hard or solid core. ... Older cats are more likely to develop these tumors than young or middle-aged cats. Sebaceous gland hyperplasia is a benign overgrowth of sebaceous gland cells. These tumors ...Sebaceous Cysts. Sebaceous cysts, technically known as epidermal inclusion cysts, are the most common type in cats. Older cats tend to develop them more than younger ones. A sebaceous cyst is basically a thick covering over a lump of sebum, which is a cheesy-looking substance. Sebaceous cysts can grow to more than an inch in diameter. CYST FORMATION There are 3 types of cutaneous cysts commonly seen in veterinary medicine, the epidermal inclusion cyst (follicular cyst), the apocrine cyst, and the sebaceous cyst. The cytologic and gross appearance of material aspirated from these lesions is described below. Other less common cysts may occur associated with various Ganglion cysts are sacs of fluid around the hand, wrist or thumb that can fade without treatment, but doctors suggest many treatments, including immobilization, aspiration or surge...We would like to show you a description here but the site won’t allow us.The sebaceous gland produces the oil (called sebum) that coats your hair and skin. Cysts can develop if the gland or its duct (the passage from which the oil is able to leave) becomes damaged or ...Ceruminous cystomatosis (ie, ceruminous adenoma, apocrine cystadenomatosis) is an uncommon, nonneoplastic disorder of cats. Lesions most commonly affect the concave …CYST FORMATION There are 3 types of cutaneous cysts commonly seen in veterinary medicine, the epidermal inclusion cyst (follicular cyst), the apocrine cyst, and the sebaceous cyst. The cytologic and gross appearance of material aspirated from these lesions is described below. Other less common cysts may occur associated with various

The cysts can sometimes be tender to the touch or feel warm to the touch. If your pet has any of these symptoms, it’s important to have them checked by a vet for diagnosis and treatment. Diagnosing Canine Sebaceous Cysts. To diagnose a sebaceous cyst, the vet will typically perform a physical examination and take a sample of the fluid from ...

A sebaceous adenoma is a noncancerous tumor of an oil-producing gland in the skin. A sebaceous adenoma is a noncancerous tumor of an oil-producing gland in the skin. A sebaceous ad...Sebaceous Cysts. Sebaceous cysts, technically known as epidermal inclusion cysts, are the most common type in cats. Older cats tend to develop them more than younger ones. A sebaceous cyst is basically a thick covering over a lump of sebum, which is a cheesy-looking substance. Sebaceous cysts can grow to more than an inch in diameter.Sebaceous cysts are also known as epidermoid or follicular cysts. Sebum, created by the cat's sebaceous glands on his skin, acts as a lubricant. If there's a blockage in the hair follicles, this substance accumulates, resulting in a cyst. Any cat can develop sebaceous cysts anywhere on the body. Varying in size, these cysts may appear bluish-gray.Jul 23, 2020 ... Typically, a sebaceous cyst is a small, raised bump, which can burst, and ooze a pasty or cottage-cheese-like substance. Sebaceous cysts ...Sebaceous adenoma is a common skin tumor that cats develop as they grow older. They are linked to your pet’s sebaceous glands which produce an oily substance named sebum. While the sebaceous adenoma looks scary, like warts, it is a typical tumor in cats and there is no reason to panic when you find one. It is a non-cancerous tumor that doesn ...Sebaceous cysts can appear anywhere on your dog’s body. In very young dogs, sebaceous cysts will usually appear on the top of their heads. For dogs of all ages, the most common locations are the head, neck, chest, and upper limbs. Also, dogs can get a similar type of lump on the margin of their eyelid. These occur when secretions from the ...Sebaceous cysts often appear on the head, neck, torso, or upper legs and are distinguished by a single raised bump that may be white or slightly blue. The fluid-filled sacs are typically benign, which means they are not cancerous and do not cause your cat any physical discomfort.As a cat owner, it’s not unusual to find bumps or lumps on your furry friend’s skin. One common area for these bumps is the base of the tail. These lumps, known as cat tail bumps, can be an alarming sight for cat owners. ... After a thorough examination, the vet informed me that it was a benign bump known as a sebaceous cyst. The vet ...Sebaceous cysts fill with sebum and develop in and around sebaceous glands that are associated with hair follicles. These cysts are also prone to secondary bacterial infection. Sebaceous cysts are common in dogs but unusual in cats, with the exception of ‘stud tail’ on the upper side of the tail.

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Sebaceous cysts often appear on the head, neck, torso, or upper legs and are distinguished by a single raised bump that may be white or slightly blue. The fluid …According to WebMD, ovarian cysts are not typically surgically removed until they are at least 7.6 centimeters. Therefore, a 4 centimeter cyst is less than half the size of a large...Take your cat for a checkup together with your veterinarian should you discover any new lumps or bumps. Eliz A / Shutterstock Sebaceous cysts are benign (non-cancerous) lots that may kind in your cat’s pores and skin, generally on the torso and higher legs. The cysts appear like raised lumps on the floor of the […] Print/View PDF. Ceruminous cystomatosis (ie, ceruminous adenoma, apocrine cystadenomatosis) is an uncommon, nonneoplastic disorder of cats. Lesions most commonly affect the concave pinna, external auditory canal opening, and occasionally the auditory canal. To date, it is thought to represent a congenital or degenerative and senile change. Sebaceous cysts on cats appear as single or multiple nodules in or under the skin. They’re most common on the head, body, and upper legs but they can occur …Sebaceous adenomas (or sebaceous cysts) often look like warts and appear most commonly on the head, though they can be found anywhere on the body. They form within the skin’s hair follicles when oil …Dentigerous cysts are more common in dogs than in cats ().Brachycephalic dogs are more frequently affected and the condition is sometimes bilateral (5,8–12).Although these cysts could be associated with any tooth, the mandibular first premolar of the dog is the most frequent (8,10,11,13).The maxillary and mandibular canine are also often implicated ().Cystadenomatosis involves the formation of multiple cysts originating from the secretory portion of modified apocrine sweat glands, leading to the development of characteristic focal to coalescing bluish-black cystic skin and ear nodules that range from 1 mm to several centi-meters in diameter ().The cysts are often located in areas of the … ….

Dentigerous cysts are more common in dogs than in cats ().Brachycephalic dogs are more frequently affected and the condition is sometimes bilateral (5,8–12).Although these cysts could be associated with any tooth, the mandibular first premolar of the dog is the most frequent (8,10,11,13).The maxillary and mandibular canine are also often implicated ().Mar 23, 2017 · How to use: To get rid of a sebaceous cyst without surgery by using a warm compress, please do the following: Gently clean the affected skin area around the cyst with soap. Apply a wet, warm washcloth to the sebaceous cyst for 20 to 30 minutes. When the washcloth cools, warm it up again by dipping it in hot water. Dr. Klein explains that sebaceous cysts, one of the easiest types to become infected, are prevalent in dogs. “They’re filled with what’s called sebum or wet wax,” he says. “They can get ...The cysts seem like raised lumps on the Take your cat for a checkup along with your veterinarian in the event you discover any new lumps or bumps. Eliz A / Shutterstock Sebaceous cysts are benign (non-cancerous) lots that may type in your cat’s pores and skin, generally on the torso and higher legs.This patient of ours needed excision of a large sebaceous cyst on its back. It was a rewarding event for both the patient and our staff. :) www.pineconepet...Thomas: The authors of the Cat Owner’s Home Veterinary Handbook say that most cysts should be removed. The reason for this is that eventually the cyst will rupture and become infected. Dahlia: Most vets remove cysts with electrocautery (burning it off) or cryotherapy (freezing it). Cats are obviously sedated or anesthetized for these ...Sebaceous cysts often appear on the head, neck, torso, or upper legs and are distinguished by a single raised bump that may be white or slightly blue. The fluid …Jul 1, 2015 · Sebaceous Cysts in Cats. A sebaceous cyst is a small sac containing an accumulation of secretions produced by the sebaceous glands. Sebaceous cysts are also known as epidermoid cysts, epidermal inclusion cysts, epidermal cysts, and wens. The sebaceous glands produce an oily substance called sebum, which lubricates the skin. Sebaceous cyst in cats, Although the overall incidence of skin tumors in dogs and cats is challenging to determine, skin is a common site for neoplasia in small animal species. ... Sebaceous epithelium. Mature sebocytes (orange arrow) surrounded by cuboidal, basilar epithelium (black arrow). ... and follicular or glandular cysts are located within the skin. Follicular ..., Sebaceous cysts are filled with dead skin cells and keratin, a protein in your hair, skin, nails, glands, and internal organs. If a sebaceous cyst breaks open, you'll see keratin ooze out. It looks pasty or cheesy and may have a foul odor. Infected sebaceous cysts may also be filled with pus. True sebaceous cysts originate from the outer layer ..., Sebaceous cysts (sometimes called follicular cysts) in dogs typically appear as small, round, and firm lumps under the skin or paws. They may be painless and can vary in size, from pea-sized to golf ball-sized. The cysts can be found anywhere on the dog’s body but are commonly found on the head, ears, and trunk., Are you wondering if cats should be kept exclusively indoors? Check out this article to learn if cats should be kept exclusively indoors. Advertisement Should domesticated cats be ..., Sebaceous cysts are filled with dead skin cells and keratin, a protein in your hair, skin, nails, glands, and internal organs. If a sebaceous cyst breaks open, you'll see keratin ooze out. It looks pasty or cheesy and may have a foul odor. Infected sebaceous cysts may also be filled with pus. True sebaceous cysts originate from the outer layer ..., Feline Cyst. "A feline cyst is a deformity of follicular (hair related) skin tissues. Some types of cat cysts are known as infundibular follicular cysts (Sebaceous cyst), Matrix cysts, Hybrid cysts, dilated pores of winer, and tumors. Most of these cysts are a keratinisation of the hair follicles (protein deposit that makes skin rough) or ..., Epidermoid cyst, also known as a sebaceous cyst, is a benign encapsulated, subepidermal nodule filled with keratin material. Although most commonly located on the face, neck, and trunk, epidermoid cysts can be found anywhere including the scrotum, genitalia, fingers, and cases within the buccal mucosa. Cysts may progress …, The cyst appears as a swelling, of varying size, on the cat’s skin. In most cases they are benign and do not cause concern for the life of the animal. Easily identifiable to the touch, they generally do not cause pain to the little feline. We distinguish between various types of cysts: Sebaceous cyst : it is the most common of the various ... , Types of Cat Cysts. There are several types of cysts that can develop in cats, including: Sebaceous cysts – small bumps that appear just under the skin and are caused by the accumulation of oil and dead skin cells. Follicular cysts – caused by hair follicles that fail to develop properly, resulting in small lumps on the cat’s skin., Types of Cat Cysts. There are several types of cysts that can develop in cats, including: Sebaceous cysts – small bumps that appear just under the skin and are caused by the accumulation of oil and dead skin cells. Follicular cysts – caused by hair follicles that fail to develop properly, resulting in small lumps on the cat’s skin., A cyst that develops in the top layer of skin (epidermis) Epidermoid cyst (sometimes known as a sebaceous cyst) A cyst that forms in a hair follicle, usually on the scalp. Pilar cyst (also sometimes known as a sebaceous cyst) A cyst in a joint or tendon, most commonly on the wrists, hands and fingers. Ganglion cyst , Thomas: The authors of the Cat Owner’s Home Veterinary Handbook say that most cysts should be removed. The reason for this is that eventually the cyst will rupture and become infected. Dahlia: Most vets remove cysts with electrocautery (burning it off) or cryotherapy (freezing it). Cats are obviously sedated or anesthetized for these ..., Although not all cysts are avoidable, sebaceous cysts, caused by blockage in hair and epidermal follicles can be mitigated by ensuring your cat has a clean environment and assisting them with cleaning and bathing if required. Although cats usually take care of bathing themselves, some may need assistance from their owners with hygiene., The fact that the cat is not in discomfort (it seems) does not mean that it isn’t cancer. Please have it checked out asap. Another possibility is a sebaceous cyst, a benign tumor that comes from glands beneath the skin. A further possibility in referring to my own experiences is that it might be an abscess. This is a bacterial infection under ..., Feb 2, 2024 · When it comes to treatment options for sebaceous cysts in cats, it’s best to consult with your veterinarian. In some cases, the cyst may resolve on its own without any intervention. However, if the cyst is causing pain or discomfort, your vet may recommend draining the fluid from the cyst or surgically removing it. , Mar 3, 2005 · Nodular Sebaceous Hyperplasia. Sebaceous gland tumor on the side of a dog's neck. Photo by MarVistaVet. About 50% of sebaceous growths are technically not tumors at all and are classified as excessive growth of the gland tissue. It is thought that growths of this group ultimately develop into actual benign sebaceous adenomas as described below. , The cyst appears as a swelling, of varying size, on the cat’s skin. In most cases they are benign and do not cause concern for the life of the animal. Easily identifiable to the touch, they generally do not cause pain to the little feline. We distinguish between various types of cysts: Sebaceous cyst : it is the most common of the various ..., Trim the hair around the lump. Add a tablespoon of antibacterial soap such as Hibitane or chlorhexidine soap to a cup of warm water. Place a sterile washcloth in it, wring it out and then place it on the cyst for about 10 minutes, rewarming it about every two minutes and then patting it dry., Treatment of Sebaceous Cysts in Cats. Aside from surgically removing a sebaceous cyst, there is no definitive treatment. It may be helpful to bathe the cat with a medicated shampoo containing benzoyl peroxide or salicylic acid to keep skin follicles from collecting oil. Benzoyl peroxide can be too drying for some animals causing redness and dry ..., To understand sebaceous cysts in cats, it’s important to know their causes, symptoms, and treatment options. Sebaceous cysts occur when the sebaceous glands, which are responsible for producing oil to lubricate the skin and hair, become blocked. This blockage can occur due to a variety of reasons, including trauma to the skin, infection, or …, Treatment Of Sebaceous Cysts In Cats. Aside from surgically removing a sebaceous cyst, there is no definitive treatment. It may be helpful to;bathe the cat with a medicated shampoo containing;benzoyl peroxide;or;salicylic acid;to keep skin follicles from collecting oil. Benzoyl peroxide can be too drying for some animals causing redness and dry ..., Is your cat soothing, or worsening symptoms of anxiety and depression. You know best, but here's what research says. Research suggests cat ownership aids — and hinders — anxiety an..., The cyst appears as a swelling, of varying size, on the cat’s skin. In most cases they are benign and do not cause concern for the life of the animal. Easily identifiable to the touch, they generally do not cause pain to the little feline. We distinguish between various types of cysts: Sebaceous cyst : it is the most common of the various ..., Cystadenomatosis involves the formation of multiple cysts originating from the secretory portion of modified apocrine sweat glands, leading to the development of characteristic focal to coalescing bluish-black cystic skin and ear nodules that range from 1 mm to several centi-meters in diameter ().The cysts are often located in areas of the …, Infundibular cysts are common in dogs and fairly common in cats. Isthmic and hybrid or panfollicular cysts are quite common in dogs and rare in cats. Matrical cysts are rare in both dogs and cats. 20 Follicular cysts are firm, usually <2 cm diameter, and may be dermal or subcutaneous. The cysts may have a white, blue, or yellow tinge., In case you’re wondering what the difference is between a sebaceous adenoma and a sebaceous cyst, a cyst is a sac filled with fluid, gas or semi-solid material. An adenoma, by contrast, is a mass of tissue. Sebaceous Cysts. Sebaceous cysts can occur in any breed of dog. They also occur in cats, but much less commonly., Epidermoid cysts can become infected, as already noted. The telltale signs of infection are redness, inflammation, and skin that feels warm to the touch. If the cyst ruptures, it can also lead to ..., Jan 10, 2017 · Sebaceous cysts in your cat are benign, harmless, and noncancerous fluid-filled sacs. These sacs occur when a hair follicle becomes damaged or clogged in your cat’s skin. When this happens, your cat’s immune system causes the surrounding tissues to wall off the damage, creating a small pocket that slowly fills with a yellowish substance ... , Sebaceous hyperplasias commonly appear as papillated masses seldom >1 cm in diameter, often with a shiny, keratotic surface. Sebaceous gland adenomas are seen in all domestic animals but are so common in older dogs and cats they can be considered primarily a small animal neoplasm. Coonhounds, English Cocker Spaniels, Cocker …, Jul 1, 2015 · Sebaceous Cysts in Cats. A sebaceous cyst is a small sac containing an accumulation of secretions produced by the sebaceous glands. Sebaceous cysts are also known as epidermoid cysts, epidermal inclusion cysts, epidermal cysts, and wens. The sebaceous glands produce an oily substance called sebum, which lubricates the skin. , Here are some guidelines to follow for at-home treatment of a sebaceous cyst: Do not attempt to pierce or pop a cyst. Use a clean cloth to apply moist heat several times a day. Alternate between heat and ice several times a day. Cleanse the skin with soap and warm water several times a day., What is a Sebaceous Cyst. Sebaceous cyst on dogs are easy to understand, they are formed when excessive sebum is produced or trapped in a nearby hair follicle leading to an obvious lumpy-like growth. These cysts can appear almost anywhere on the body but are mostly seen on the head, fore limbs, neck and trunk. They take the form of …, Sebaceous cysts occur when the follicle becomes blocked, causing a build-up of sebum to occur. Left untreated, sebaceous cysts can become infected and therefore while the cysts themselves are harmless, they should be seen by a veterinarian. There is no breed, age or sex predilection. Symptoms.