Brown spots on the face may be caused by chloasma, age spots, sun spots and so on, as follows: 1. Chloasma: Poor sleep quality caused by repeated late nights and excessive pressure, slow metabolism leading to endocrine imbalance and hormone secretion disorders in the body will easily form brown spots. It is recommended to adjust work and rest time and avoid excessive late nights, learn to self-regulate, try to keep a happy mood, regulate self-emotions, and maintain a positive mindset. 2. Age spots: With age, the resistance of the body decreases, and the phenomenon of hyperpigmentation is easy to occur. In addition, diabetes, high blood pressure and other diseases may also induce age spots. 3. Sun spots: If you don’t pay attention to the sun protection of your skin, it is easy to cause pigment deposition on the face and form brown spots. It is recommended that you choose to apply sunscreen and wear a sun hat when you go out to protect yourself from the sun. Brown patches on the face may also have other reasons, it is recommended to go to the regular hospital in a timely manner, improve the examination to clarify the cause of the disease, give targeted treatment or treatment.