Spring dandruff, may be caused by physiological reasons, may also be caused by pathological reasons, such as seborrheic dermatitis, tinea capitis, scalp furuncle, scalp psoriasis, etc.. 1. Physiological reasons: spring weather is relatively dry, reducing the level of sebaceous gland secretion, the hair does not have sufficient moisture to moisturize, there will be symptoms of peeling, after drying into dandruff. 2. Seborrheic dermatitis: Seborrheic dermatitis is one of the causes of dandruff, if it is oily skin or Malassezia infection, it will cause seborrheic dermatitis. This kind of dandruff is greasy, and it is accompanied by red spots and small pimples on the scalp. 3. Tinea capitis: Tinea capitis is usually caused by fungal infections, and its typical symptoms are dandruff and hair loss. 4. Scalp chaffing: Scalp chaffing is caused by the exuberant secretion of sebaceous glands, which is characterized by greasy scalp and hair, itchiness and increased scaling. 5. Scalp psoriasis: Scalp psoriasis is typically characterized by the appearance of clearly defined red spots on the scalp, covered with thick white scales, and there may also be tufts of hair, accompanied by itching and other symptoms. There may be other reasons for spring dandruff, it is recommended to go to the hospital in a timely manner, improve the relevant examination, a clear diagnosis, symptomatic treatment.