At the age of 48, the sudden growth of many spots on the face may be related to chloasma, age spots and solar dermatitis. 1. Melasma: due to the influence of genetic factors and endocrine disorders and other factors, middle-aged women will have color spots on their faces, and the symptoms of melasma will gradually aggravate under improper daily care, such as prolonged exposure to sunlight and so on. 2. Age spots: due to aging, stimulation of chemical substances and ultraviolet radiation, the physiological function of the skin will be changed abnormally, which will lead to skin keratinization, and the clinic will show some brown, light brown or normal skin color flattened plaques. 3. Solar dermatitis: due to prolonged exposure to ultraviolet radiation or prolonged exposure to the sun, the normal physiological function of the skin will be affected, resulting in some pigmentation. 48 years old face suddenly long a lot of spots may also be other reasons, it is recommended that the patient timely to the hospital, clear cause, follow the doctor’s instructions standardized treatment.