Moles are benign skin growths that are commonly black or brown. The can occur in children and may continue to appear throughout a person's life. They also often change in color or shape. There are several types of moles; some more prone to skin cancer than others. Get any noticeable changes to a mole checked by a dermatologist to be sure skin cancer has not developed. Moles may be removed for evaluation or for cosmetic reasons. Follow the links below to find WebMD's comprehensive coverage about how moles develop, what they look like, how to spot skin cancer, and much more.
Moles, Freckles, Skin Tags, and More
Learn about moles, freckles, skin tags, seborrheic keratoses, and lentigines and their relationships to your skin. Find out what they look like and how they're treated.
Learn to Screen Your Moles for Skin Cancer
WebMD helps you identify moles that may be a sign of skin cancer.
The Basics of Skin Biopsy
Learn more from WebMD about the different types of skin biopsies, a procedure in which a sample of skin tissue is tested to diagnose skin cancer and other conditions.
An Overview of Skin Cancer
Skin cancer is the most common of all human cancers. WebMD explains the different types, including symptoms, diagnosis, treatment, and prevention.
Slideshows & Images
Picture of Pigmented Nevi
Pigmented nevi (moles) are growths on the skin that usually are flesh-colored, brown or black. Moles can appear anywhere on the skin, alone or in groups.
Slideshow: Lumps and Bumps: What’s on My Skin?
Skin lumps and bumps can pop up from time to time. Learn what’s normal and what to show a doctor.
Picture of Congenital Nevi
Congenital nevi are moles that appear at birth. Congenital nevi occur in about one in 100 people.
Slideshow: Precancerous Skin Lesions and Skin Cancer
Like many cancers, skin cancers -- including melanoma, basal cell carcinoma, and squamous cell carcinoma -- start as precancerous lesions. These precancerous lesions are changes in skin that are not cancer, but could become cancer over time. Learn to spot the early warning signs of skin cancer. It can be cured if it's found and treated early.