Dandruff is not kidney deficiency. Kidney deficiency can also be called “kidney deficiency”, generally from the perspective of traditional Chinese medicine, the main manifestations of hair, hair loss, fatigue, long urine, pale tongue, white moss, fine pulse and other signs, so there is no relationship with dandruff. Dandruff is generally due to the following 4 reasons. 1. Seborrheic dermatitis: excessive secretion of body oil can lead to seborrheic dermatitis, keratinocyte turnover accelerated, resulting in an increase in dandruff, accompanied by scalp redness, itching. 2. Scalp psoriasis: mainly manifested as red spots and scales on the scalp, the scales are very thick, and there can be punctate hemorrhage after scraping off the scales. 3. Scalp fungal infection: hair loss or hair breakage, accompanied by increased dandruff. 4. Head simple chaff rash: manifested by increased scalp scales, which may be related to dry scalp, contact with irritating substances, pathogenic bacterial infections, heredity and other factors. If the symptoms of dandruff are not relieved, you should go to the hospital in time, and give targeted treatment after clarifying the cause.