Hair balding, also known as baldness, is a state of hair loss that may be caused by congenital factors, infections, patchy baldness, seborrheic alopecia and other causes. 1. Congenital factors: when patients have congenital alopecia, hair follicle dysplasia, abnormal hair shaft structure, such as candida hair, twisted hair, etc., it may cause hair baldness. 2. Infection: when the patient’s scalp is infected by various fungal or bacterial infections, it may lead to inflammatory stimulation of the hair follicles and hairs, thus causing hair baldness. 3. Patchy baldness: Patchy baldness is a kind of limited patchy alopecia, which may cause baldness when the patient has patchy baldness on the top part of the head. 4. Seborrheic alopecia: Seborrheic alopecia, also known as androgenetic alopecia, is a progressive hair loss disease that occurs during and after puberty, usually men will show a shift in the frontal hairline or a progressive reduction and thinning of hair on the top of the head, which may lead to baldness. It is recommended that patients seek timely medical examination to clarify the cause of the disease and then carry out targeted treatment, pay attention to scalp cleanliness in life, protect the hair, and if necessary, you can choose to wear a wig to change the appearance and so on.