Skip to content

    Image Collection:

    Adult Skin Problems

    Photo of a mole on the back of a woman's neck


    back button next button

    © Bart's Medical Library / Phototake -- All rights reserved.

    Moles are growths on the skin that are usually brown or black. Moles can appear anywhere on the skin, either alone or in groups.

    Most moles appear in early childhood and during the first 20 years of a person's life. Some moles may not appear until later in life. It is normal to have between 10-40 moles by adulthood.

    As the years pass, moles usually change slowly, becoming raised and/or changing in color. Often, hairs develop on the mole. However, moles may not change at all, while others may slowly disappear over time. Moles are usually benign but they sometimes can be an indication of skin cancer. Read more about moles, freckles, and skin tags.

    Reviewed on March 14, 2016

    Today on WebMD

    Pictures and symptoms of the red, scaly rash.
    woman with dyed dark hair
    What it says about your health.
    woman with cleaning products
    Top causes of the itch that rashes.
    atopic dermatitus
    Identify and treat common skin problems.
    itchy skin
    shingles rash on skin
    woman with skin tag
    Woman washing face
    woman washing her hair in sink
    close up of womans bare neck
    woman with face cream