Why Moles Appear and How to Distinguish Them from Melanoma: Key Signs

Moles are common skin growths that occur due to the accumulation of pigment cells known as melanocytes. On average, a person may have between 10 to 40 moles, and they most often appear on areas of the body that are regularly exposed to sunlight. The number and location of moles depend on heredity, exposure to ultraviolet radiation, and hormonal changes in the body.

This is reported by AgroReview

Why Moles Form: Key Factors

Moles can appear on anyone, but individuals with fair skin tend to have them more frequently, as they have lower levels of melanin – the pigment that provides natural protection against ultraviolet rays. Therefore, prolonged sun exposure for such individuals leads to the appearance of new moles.

Experts identify the main reasons for the formation of moles:

• Sunlight and UV Rays. Under the influence of ultraviolet light, melanin production is activated, which can cause pigment accumulation in certain areas of the skin.
• Age-Related Changes. Most new moles form during childhood and adolescence, and less frequently after the age of 40.
• Heredity. If there is a family tendency towards a large number of moles, fair skin, or light hair, the likelihood of developing new growths increases.
• Hormonal Changes. During periods of pregnancy or puberty, moles may appear more frequently.

The vast majority of moles are safe. However, some individuals may have dysplastic nevi – moles that have unusual shapes or colors, which can potentially transform into melanoma – the most aggressive type of skin cancer. Statistically, about 10% of adults have at least one such mole.

Signs of Dangerous Changes and Melanoma Prevention

Dermatologists recommend using the ABCDE rule for timely detection of suspicious changes:

• A (Asymmetry): one half of the mole does not match the other;
• B (Borders): uneven or scalloped edges;
• C (Color): irregular or gradually changing;
• D (Diameter): more than 6 millimeters;
• E (Evolution): the mole is increasing in size, changing shape, or altering other characteristics.

“If a mole changes, has an unusual color, cracks, or does not heal, it is advisable to consult a dermatologist. The doctor will assess its appearance and, if necessary, refer for further examination.”

To reduce the risk of developing dangerous moles and melanoma, medical professionals recommend using sunscreen daily, wearing hats and long-sleeved clothing, avoiding prolonged sun exposure, and refraining from visiting tanning salons. It is important to periodically examine your skin yourself, as early detection of changes allows for timely prevention of serious complications.