Moles are small pigmented marks on the skin. For the most part, moles are noncancerous and nothing to worry about, but if you have a mole you don’t like, it can usually be removed.
Moles that appear after you are 30 or that change in certain ways may become a problem. These moles may turn into melanoma, a type of skin cancer. Since some moles can become cancerous, it’s important to regularly check your moles to make sure there are no changes.
If you notice any of the following changes with your moles, you should schedule an appointment to meet with a doctor or dermatologist: