The borders of aggressive tumors are generally irregular, notched, or ragged. In contrast, the edges of non-malignant tumors are usually smooth and regular. Additionally, any change in the surface of a mole is a warning sign. Scaliness, oozing, bleeding, or the appearance of a lump or bump should be inspected, as should any redness or a new swelling beyond the border of the mole, or spread of pigment from the border of a spot into the surrounding skin.

This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.