What causes freckles most commonly?
Disease description:
I have developed many small spots on both sides of my nose, which seem to have been there since childhood. I visited the dermatology department at the hospital, and the doctor diagnosed them as freckles. What is the most common cause of freckles?
Doctor's answer (1)
Dr. Wang Xiaoyan
Freckles are most commonly caused by genetic factors. Freckles are an autosomal dominant hereditary condition, and the onset often shows familial clustering. If parents have freckles, their children generally have a higher probability of developing freckles. In addition, the formation of freckles may also be influenced by multiple factors such as ultraviolet radiation, endocrine disorders, and unhealthy lifestyle habits. For example, sun exposure may trigger or worsen freckles, while endocrine disorders, high levels of psychological stress, prolonged exposure to electronic screens, and other unhealthy lifestyle habits may also increase the risk of developing freckles. Therefore, preventing freckles requires comprehensive consideration of various factors, and maintaining good lifestyle habits and sun protection measures are crucial.
