Hair that is not oily but in strands may be due to lack of nutrition, seborrheic dermatitis, psoriasis and other factors.
1. Lack of nutrition: when the hair lacks nutrition, it may appear dry, thin and soft, easy to break, easy to stick together and other symptoms, while looking strand by strand.
2. Seborrheic dermatitis: the pathogenesis is not completely clear, it is a common skin disease, when it occurs in the scalp, it can be manifested as erythema, greasy flaking, vesicles, itching, odor, etc., and the hair may appear strand by strand due to sebum adherence.
3. Psoriasis: commonly known as psoriasis, is a skin disease caused by a combination of environmental factors, genetic factors, immune factors, etc. When the scalp is damaged, it may manifest as thickening of scales, often exceeding the hairline, and the hair is in bundles.
Hair is not oily but strand by strand may also be caused by other factors, it is recommended that patients seek medical attention in a timely manner in order to clarify the cause of the disease, targeted treatment.