Dandruff may be caused by physiological factors such as lack of hygiene, or it may be caused by diseases such as ringworm of the head, seborrheic dermatitis and scalp psoriasis.
1. Physiological factors: If you don’t pay attention to personal hygiene or local cleaning is not in place in daily life, maybe dirt will be left in the local area, which will lead to tinea capitis.
2. Tinea capitis: its cause is mostly related to skin contact with dermatophytes such as Microsporum spp. and Trichophyton spp. Patients will have symptoms such as alopecia patches with scales and yellow scabs, and some of the patients may have tinea capitis.
3. Seborrheic dermatitis: the etiology is not clear, may be related to genetic, microbial and cardiovascular diseases and other factors, some patients will appear chaff-like dandruff, yellow or brown scabs and other symptoms, which will lead to localized head scale.
4. Scalp psoriasis: the main symptom of scalp-type psoriasis is a red spot covered with thick scales, sometimes fused into a piece, appearing scalp phenomenon.
There are many reasons for scalp scales, after excluding physiological factors, it is recommended that the patient consult a doctor for examination, after clarifying the cause of treatment, do not blindly deal with it on your own.