How does eczema occur?

Eczema is caused by the interaction of many internal and external factors.

Internal factors include genetic factors, if there is a history of eczema in the family, the risk of individual disease may increase; autoimmune system abnormalities, when the immune system imbalance, may lead to eczema; endocrine disorders, such as thyroid dysfunction, may also be related to eczema; chronic infection in the body, such as some bacteria, virus infection, etc., may cause eczema.

External factors, environmental factors are more important, long-term exposure to humid, stuffy environment, or contact with some allergens, such as dust mites, pollen, animal fur, etc., may cause eczema; climate changes, especially rapid changes in temperature and humidity, may also easily stimulate the skin to cause eczema; chemicals exposed to daily life, such as certain cosmetics, detergents, may damage the skin barrier, leading to eczema; Mental factors can not be ignored, long-term mental tension, anxiety, stress, etc., can affect neuroendocrine function, and then induce eczema. In addition, bad eating habits, excessive consumption of spicy, irritating food or sensitive food, may also promote eczema.