Childhood Sunburn Raises Long‑Term Skin Cancer Risk

Severe sunburns in childhood can cause lasting damage to deeper layers of skin, markedly increasing the likelihood of melanoma later in life. British dermatology experts note that about a quarter of all UV‑related injuries occur before age 20, and five or more severe burns before that age can raise melanoma risk by up to 80 %. The cumulative DNA damage from ultraviolet exposure also accelerates premature skin ageing.

Health professionals advise that sunscreen, applied at least 20 minutes before exposure and refreshed every two hours or after swimming or sweating, remains a key preventive measure. Typical adult use requires roughly 30–35 ml (about one full palm) for the whole body, with two finger‑lengths for the face and neck. Over‑application is generally safe, though very sensitive skin may react to certain ingredients. Complementary protection includes seeking shade, especially between 10 a.m. and 4 p.m., wearing protective clothing, hats and sunglasses, and limiting direct sun for infants under six months.