Skip to content

Healthy Cats

Font Size
A
A
A

Skin Lumps or Bumps in Cats

During the course of grooming, playing with or handling your cat, you may discover a lump or bump or or beneath the skin. To learn what it may be, see this table on lumps or bumps on or beneath the skin.

  • Abscess: A painful collection of pus at the site of a bite or puncture wound. Frequently found after cat fights. Forms a firm swelling that becomes soft with time. Purulent discharge.
  • Cancer: A lump that indicates cancer is characterized by rapid enlargement; appears hard or fixed to surrounding tissue; any lump growing from bone; a lump that starts to bleed; a mole that begins to spread or ulcerate; an unexplained open sore that does not heal, especially on the feet or legs. The only way to tell for sure is to remove and study the lump under a microscope. Better to check out a benign lump than to miss a malignant one.
  • Epidermal inclusion cyst: A firm, smooth lump beneath the skin. May grow slowly. May discharge cheesy material and become infected. Otherwise, not painful.
  • Grubs/Cuterebra: Inch-long fly larvae that form cystlike lumps beneath the skin with a hole in the center for the insect to breathe. Often found beneath the chin, on the neck, or along the abdomen.
  • Hematoma: A collection of clotted blood beneath the skin; often involves the ears. Caused by trauma. May be painful.
  • Mycetoma: Mass or nodule beneath the skin with an open tract to the surface draining a granular material. Caused by a fungus.
  • Skin papilloma: These grow out from the skin and may look like a wart or a piece of chewing gum stuck to the skin. Not painful or dangerous.
  • Sporotrichosis: Skin nodule with overlying hair loss and wet surface of pus at the site of a puncture wound or break in the skin. Caused by a fungus.

Any sort of lump, bump, or growth found on or beneath the skin is, by definition, a tumor, which literally means a swelling. Tumors are classified as benign when they are not cancer, and malignant when they are.

Recommended Related to Cats

Deafness and Hearing Loss in Cats

Some cats are born without the ability to hear because of developmental defects in the hearing apparatus. Cats may also be deaf in just one ear. Congenital deafness occurs most often in white cats with blue eyes, and is the result of an incomplete autosomal dominant gene. However, not all cats with blue eyes are deaf, and that includes not all white cats with blue eyes. Longhaired cats with blue eyes have a higher risk of deafness than shorthaired cats with blue eyes. White cats with the Siamese...

Read the Deafness and Hearing Loss in Cats article > >

Today on WebMD

cat at table
What's safe for them to eat?
Maine Coon cat breed
What they do and why cats have them.
 
Kitten in litterbox
How to solve them.
cat meowing
Why some cats are so talkative
 
cat on couch
Evaluator
Kitten using litter box
Quiz
 
sleeping kitten
Slideshow
sad kitten looking at milk glass
Slideshow
 

Love your pets, hate your allergies?

Get tips for relief.

Loading ...

Sending your email...

This feature is temporarily unavailable. Please try again later.

Thanks!

Now check your email account on your mobile phone to download your new app.

cat at table
Slideshow
muddy dog on white sofa
Quiz
 
Maine Coon cat breed
Article
Pets: Behavior Problems in Cats
Slideshow