The main reason for different color spots is the deposition of pigments. Sometimes the human body is most likely to develop yellow spots during the season because summer is the season when the skin receives the most ultraviolet rays. The development of spots is actually related to age. Most people will start to develop spots on their faces when they are over 50 years old due to the loss of body water. When yellow spots appear on the skin, you must pay attention to sun protection and isolation to avoid worsening of the situation. 1. What causes yellow spots on the skin? Yellow spots may appear more frequently in the summer. This is because most people are exposed to ultraviolet rays for a long time in the summer, or a large amount of sweat is discharged from the body and is not cleaned in time, which will cause tinea versicolor. This is a disease that will cause yellow spots on the skin. 2. What are the symptoms of yellow spots on the skin? Age-related macular degeneration: It is a common blinding eye disease in people over 50 years old in developed areas. With the aging of society, the incidence rate increases. It is divided into two types: dry and wet. It may be related to long-term chronic light damage to the macula, genetics, metabolism, nutrition and other factors. Cystoid macular edema: It is not an independent disease and is often caused by other lesions. The pathological feature is intraretinal edema containing honeycomb cysts. FFA showed that the edema came from the abnormal permeability of retinal capillaries around the fovea, showing many small leakage points and accumulation of fluorescence in the cystic cavity, forming a petal shape due to the radial arrangement of Henle fibers. 3. What should you pay attention to when your skin has yellow spots? Sun protection: Sun exposure can increase the activity of melanin, causing an increase in the melanin content in the basal layer of the epidermis and the formation of spots. In the summer, there is plenty of sunlight, the spots are active frequently, the number of spots increases, the color deepens, and the damage becomes larger; in the winter, there is less sunlight, the number of spots decreases, the color becomes lighter, and the damage is reduced. Sun exposure is an essential factor in the occurrence of pigmentation, so skin with pigmentation should try to avoid prolonged sun exposure. Prevent various ionizing radiation: ionizing radiation includes various display screens, various fluorescent lamps, X-ray machines, ultraviolet irradiators, etc. These adverse stimuli can produce similar consequences to strong sunlight exposure, and may even cause greater damage than sunlight exposure, resulting in worsening of pigmentation. |
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