A keloid refers to a lump or bump that forms as a result of abnormal scar formation. They typically form on the back, shoulders, ears, or chest.
Signs and symptoms of a keloid include a raised pink, red, or purple scar that grows slowly and feels soft and doughy or hard and rubbery. It can be associated with pain, itch, or tenderness, and can become darker in color with time. Keloids do not improve over time like normal scar tissue. If the keloid is removed, it will typically come back in an even larger form.
Cause of keloid
It is not clear exactly what causes keloids to form, but they develop at sites of previous injury, including surgical incisions. People with darker skin have a greater risk of keloid formation than those with lighter skin.
Other keloid symptoms and signs
- Itching
- Pain or Tenderness
- Raised Pink, Red, or Purple Scar
- Scar That Becomes Darker in Color with Time
- Scar That Grows Slowly
Main Article on Keloid Symptoms and Signs

SLIDESHOW
Rosacea, Acne, Shingles, Covid-19 Rashes: Common Adult Skin Diseases See SlideshowPictures, Images, Illustrations & Quizzes
-
Picture of Keloid
Keloid. A keloid scar is a scar that, in appearance, looks larger than the original wound, is thick or lumpy, and rises high...
-
Skin Problems and Treatments: Surprising Reasons You're Itchy
Find out some unexpected causes of your itchiness, such as thyroid problems, cancer treatments, pregnancy, diabetes, and more.
-
Skin Problems: Contagious Rashes, Bumps, and Blisters
Why do rashes, bumps, and blisters appear on your skin? There are several medical causes. Find out what causes bumps, rashes, and...
From 
Skin Problems and Treatments Resources
Featured Centers
Health Solutions From Our Sponsors
Subscribe to MedicineNet's Skin Care & Conditions Newsletter
By clicking "Submit," I agree to the MedicineNet Terms and Conditions and Privacy Policy. I also agree to receive emails from MedicineNet and I understand that I may opt out of MedicineNet subscriptions at any time.