Long spots on both sides of the corners of the eyes in spring may be caused by endocrine disorders, long-term ultraviolet irradiation and aging. 1. Endocrine disorders: the climate in spring is changeable, and the temperature difference in some places is relatively large, such climate change often interferes with people’s normal physiological rhythm, resulting in chloasma caused by endocrine disorders and the occurrence of long spots on both sides of the corners of the eyes in spring. 2. Long-term ultraviolet irradiation: spring is full of sunlight and ultraviolet radiation is strong, if you often engage in outdoor activities or work, long-term exposure to ultraviolet radiation, the skin barrier is damaged, resulting in localized pigmentation and the appearance of obvious spots. 3. Aging: Generally with the growth of age, the function of various tissues and organs in the body gradually decreases, and the cell function is abnormal, leading to the increase of melanin synthesis, thus forming age spots. Age spots, also known as seborrheic keratosis, generally appear after 40 years old. If the situation of spots on both sides of the corners of the eyes occurs in spring, if it affects the aesthetics, you can go to the dermatology department of regular hospitals, and take the corresponding treatment under the guidance of doctors.