Is melasma related to sun exposure?

Melasma is closely related to sun exposure. Also known as chloasma or the "liver spot," melasma is a tan or brown pigmentation condition commonly found on the face, especially in women, and particularly in those with high estrogen levels. The development of melasma is associated with multiple factors, among which sunlight exposure is an important triggering factor. Prolonged or frequent sun exposure can contribute to the onset of melasma and may worsen existing symptoms. This is because ultraviolet radiation stimulates melanocyte division, increasing melanin production in the exposed areas, thereby forming or aggravating melasma. Therefore, to prevent and alleviate melasma, it is very important to avoid prolonged exposure to strong sunlight and to take proper sun protection measures. At the same time, attention should also be given to regulating the endocrine system and avoiding the use of skincare products or treatment methods that are highly irritating, in order to maintain healthy skin.