More and more spots on the face may be caused by ultraviolet radiation, bad life habits, endocrine disorders and other reasons. 1. Ultraviolet radiation: long-term exposure to the sun and long-term damage to the skin by ultraviolet rays can cause accelerated melanin synthesis, leading to pigmentation and the phenomenon of more and more spots on the face. 2. Bad life habits: if patients have irregular work and rest for a long time, often stay up late, poor skin metabolic rate and metabolism will affect the metabolism of melanin, resulting in pigmentation, which will lead to the phenomenon of more and more spots on the face. 3. Endocrine disorders: women in menstruation and pregnancy, changes in the level of sex hormones in the body, easy to cause melanin production, thus appearing this phenomenon. In addition, patients with more and more spots on the face should go to the hospital in time and follow the doctor’s instructions for treatment to avoid delaying the condition.