A layer of white stuff grows on the scalp

If there is white stuff on the scalp, it is likely to be ringworm. Psoriasis patients generally cannot be cured, they can only alleviate the symptoms, and psoriasis will recur. Some are caused by low immunity, and some are caused by genetic reasons. No matter which one it is, you should pay attention to your eating habits and daily routine. Only good living habits can keep you away from diseases.

Psoriasis, commonly known as psoriasis, is a chronic inflammatory skin disease with a long course and a tendency to relapse. In some cases, it is almost impossible to heal for life. The disease mainly occurs in young and middle-aged people, and has a great impact on the physical health and mental state of patients. The main clinical manifestations are erythema and scaling. The disease can occur all over the body, but is more common on the scalp and extensor side of the limbs, and often worsens in winter.

Causes

Although many studies have been conducted on the cause of this disease, it is still not very clear. It is currently believed that the occurrence of this disease is not caused by a single factor and may involve multiple factors.

1. Genetics

A considerable number of patients have a family history of the disease, and some families have an obvious genetic tendency. It is generally believed that about 30% of people have a family history. The incidence rate varies greatly among different ethnic groups. Psoriasis is a multi-gene genetic disease caused by the interaction of multiple factors such as genetic factors and environmental factors. The occurrence rate of certain HLA antigens in patients with this disease is significantly increased. There may be overlap in genetic loci between psoriasis and other diseases (such as rheumatoid arthritis, atopic dermatitis, etc.).

2. Infection

Many scholars have confirmed that streptococcal infection is related to the onset and prolonged course of psoriasis from the aspects of humoral immunity (anti-streptococcal group), cellular immunity (peripheral blood and skin lesion T cells), bacterial culture and treatment. In patients with psoriasis, Staphylococcus aureus infection can aggravate skin lesions, which is related to the superantigens of Staphylococcus aureus exotoxin. Although the occurrence of this disease is related to viral (such as HIV virus) and fungal (such as Malassezia) infections, its exact mechanism has not yet been finally confirmed.

3. Immune abnormalities

A large number of studies have shown that psoriasis is an immune-mediated inflammatory skin disease, and its onset is related to inflammatory cell infiltration and inflammatory factors.

4. Endocrine factors

For some female patients, skin lesions are alleviated or even disappear after pregnancy, and worsen after delivery.

5. Others

Psychoneural factors have a certain relationship with the onset of psoriasis. Alcohol, smoking, drugs and mental stress may trigger psoriasis.