There are several causes of increased dandruff, including:
1. Excessive mental pressure leads to scalp vascular movement disorders, local environmental changes and scalp cell keratosis renewal disorders.
2. Tinea capitis, that is, fungal infection occurs on the surface of the hair and scalp, and necrotic epidermal cells fall off to become excessive dandruff.
3. Seborrheic dermatitis, on the basis of hereditary seborrhea quality, the parasitism and reproduction of Malassezia and other microorganisms hydrolyze triglycerides in sebum, and the free fatty acids produced further stimulate the inflammatory reaction, resulting in a large number of chaff-like desquamation on the scalp.
4. Psoriasis, which leads to the acceleration of the proliferation of keratinocytes in the epidermal base for unknown reasons, the shortening of the mito-** cycle, and the increase of dandruff.
5. Ichthyosis, an autosomal dominant genetic disease, leads to hyperkeratosis of the superficial layer and increased dandruff for unknown reasons.
6. Vitamin deficiency, when the human body lacks vitamin B, it can also cause dandruff.
7. The influence of external factors, such as weather changes, improper diet, lack of sleep, mental stress, etc., as well as hormone imbalance in the body may also lead to increased dandruff.
8. Other factors, such as not paying attention to hygiene, not washing hair for a long time, or residual shampoo when washing hair, using inferior shampoo with too strong degreasing power or inferior hair products, etc., can cause dandruff and lead to more and more dandruff.
In addition, abnormal growth of scalp keratinocytes, excessive sebum secretion, and excessive metabolism may also lead to increased dandruff. Therefore, it is recommended that you keep your scalp clean, choose the right shampoo to avoid over-irritating your scalp, and seek medical help if the condition is severe or persistent.