I believe that most people often see many older women with dark brown patches on their faces in their daily lives. This is common chloasma, a pigmentation disease. The causes of chloasma mainly include internal and external factors. The internal factors are endocrine disorders, excessive emotions, frequent use of contraceptives or irregular menstruation, while the external factors are prolonged sunlight exposure, cosmetics, improper use, excessive hormones produced by the face, and failure to pay attention to timely cleaning. These factors are all causes of chloasma. Melasma Causes Why do people get melasma? In fact, there are two main factors that cause melasma, one is internal and the other is external. 1. Internal factors 1. Endocrine disorders, female pregnancy, menstrual cycle disorders, and unharmonious marital life can easily cause changes in estrogen in the body. Estrogen increases melanin formation and produces chloasma by relieving the inhibitory effect of glutathione or sulfhydryl on tyrosinase. 2. Human emotions can affect the secretion of hormones. Lack of energy, low mood (depression), great psychological pressure, irritability, irregular sexual life, etc. can all cause chloasma. When chloasma appears, people's emotions change more seriously, and they may become impatient, disappointed, etc., which can further aggravate the condition of chloasma. Therefore, it is important to maintain a happy mood in daily life. 3. If a woman takes contraceptives for a long time or has irregular menstruation, or suffers from liver and kidney diseases, it will cause chloasma. Women who take birth control pills for a long time 2. External factors 1. Sunlight exposure Long-term sun exposure and light sources with strong radiation will accelerate the synthesis of melanin, resulting in pigmentation to form dark spots and darker skin color. Ultraviolet radiation can change the distribution pattern of melanosomes in keratinocytes, which will aggravate the condition of patients with chloasma. As for the increasingly serious environmental pollution, such as the increase in concentration of dust, sulfur dioxide, etc., and their large-scale dissolution in humid air, they can increase the density of melanocytes in the facial skin, increase melanin synthesis through photochemical action, and also promote chloasma. 2. Improper use of cosmetics Misuse of cosmetics can also cause melasma. Many inferior cosmetics contain excessive amounts of heavy metals and other ingredients. Once absorbed by the skin, they will increase tyrosinase activity and accelerate melanin deposition. Exposure to ultraviolet rays can induce chloasma. 3. Food Long-term lack of glutathione in the diet will increase the activity of tyrosinase in the skin, which will then oxidize tyrosine into dopamine and form melanin, causing pigmentation and producing chloasma. Such as chili peppers, Sichuan pepper, pepper, raw onions, raw garlic, mustard, leeks, etc.; try to eat less fried foods, fatty meat, rice cakes, glutinous rice cakes, etc. How to treat melasma 1. Surgery Laser has risks. Laser burns the skin on the face and dissolves the shallow melanin, but it cannot remove the deep melanin. Also, after the surgery, you must take good care of yourself, otherwise there is a high chance of rebound. 2. Facial mask Homemade facial masks can generally be made, but the effect is not very good. If the process required is complicated, it is best to give up, because sometimes improper use can easily lead to allergies. |
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