Knowledge of prevention and treatment of melasma (two)

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First talk about the cause of the disease: the cause of melasma is not very clear, but with the following factors are closely related:1 phys

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First talk about the cause of the disease: the cause of melasma is not very clear, but with the following factors are closely related:

1 physiological changes: pregnant women often originated in the middle of pregnancy, it is also known as “ pregnancy spot ” after childbirth gradually subsided, but there are some people continue to exist for many years. May be associated with increased levels of progesterone and estrogen.

2 is a manifestation of the disease within the body in the facial skin.

(1) genital diseases caused by menstrual disorders, dysmenorrhea, uterine chronic diseases, chronic inflammation of the accessory, ovarian cysts and other genital diseases can be accompanied by facial melasma.

(2) endocrine disorders such as hypothyroidism, adrenal cortical dysfunction can produce chloasma.

(3) chronic diseases, such as chronic gastrointestinal diseases, chronic liver and kidney diseases, chronic alcoholism, tuberculosis and malignant tumors, can also lead to the formation of melasma.

3 drug induced

The most common form of oral contraceptives caused by melasma, 20% of the drug can be produced in women, after stopping the stain can be subsided, but also sustainable existence. The long-term use of phenytoin, spironolactone, cimetidine, diethylstilbestrol and other drugs can also induce chloasma.

4 cosmetics can induce chloasma, which may be related to some cosmetic ingredients, such as the oxidation of linoleic acid, salicylic acid salt, spices, preservatives, lead, mercury and other heavy metals, especially in poor quality cosmetics.

5 solar irradiation

Ultraviolet radiation in sunlight is an important cause of the disease. The skin after a strong ultraviolet radiation, stimulate the skin melanocytes division, proliferation, resulting in more melanin granules, so that the skin tanning, pigmentation.

6 mental factors and the disease is also closely related: excessive fatigue, rest, long-term insomnia, mental burden, mental trauma can cause pigment deepened.

 

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