What is "seborrheic dermatitis"

Seborrheic dermatitis is a chronic papular, scaly, inflammatory skin disease that mainly occurs in areas with strong sebum secretion such as the scalp, face, chest, and back. Both sides of the nose are high-incidence areas. The main symptoms are clear dark yellow-red spots, plaques or maculopapules on the edges, and the surface is covered with greasy scales or scabs. Many people experience repeated itching and tingling, and the symptoms are severe and painful. If it occurs on the head, it will be accompanied by a lot of dandruff.

The cause of "seborrheic dermatitis" The specific cause of seborrheic dermatitis is not particularly clear. Early studies have found that the incidence of seborrheic dermatitis is higher in those with strong sebum secretion, and it is believed that excessive sebum secretion is one of the important factors leading to seborrheic dermatitis.

Later, dermatologists found Malassezia, a fungus, in the patient's skin lesions, and when the fungus was reduced, the condition was greatly relieved. Doctors at the time generally believed that Malassezia was the killer of seborrheic dermatitis.

However, some doctors have found that there are Malassezia bacteria on the skin of normal people, and there are no more Malassezia bacteria in patients with seborrheic dermatitis than ordinary people. The claim that Malassezia is responsible for seborrheic dermatitis has been called into question.

Further research by scientists has found that the occurrence of seborrheic dermatitis is mainly caused by the patient's own immune system overreacting to Malassezia. Under normal circumstances, the human body and Malassezia coexist peacefully, hello, hello, hello everyone. However, when the human body's immune system is disturbed due to factors such as mental stress, improper diet, improper nursing, and endocrine disorders, the body's defense system is mobilized to eliminate Malassezia, but the overreaction causes skin inflammation.

Malassezia tends to grow rapidly in areas with high oil secretion. Excessive sebum secretion, Malassezia, and overreaction of the human immune system combine to cause seborrheic dermatitis.

Solution Many people think that the blush and itchy skin caused by seborrheic dermatitis are not a big problem. In fact, this idea is not reliable. Since it is a disease, I still have to see a doctor. Although there are many quack doctors now, and the proportion is not low, there are still good doctors.

Of course, for seborrheic dermatitis, skin care products are not completely useless. From the above causes of seborrheic dermatitis, we can know that the strong secretion of sebum is one of the reasons. Proper use of oil control products can play a good auxiliary role.

In addition, there is no cure for seborrheic dermatitis in medicine now, and it is prone to repeated attacks. There is no way, although it seems that medicine is very advanced, but in the face of diseases, there is often nothing that can be done. People who have suffered from seborrheic dermatitis before should take special care of their skin to prevent recurrence.

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