Patients with seborrheic alopecia usually have a family history of alopecia (that is, patients with alopecia in their immediate family members). Mostly from adolescence, the hair slowly and continuously falls off, gradually becomes slender and the scalp is greasy. For men, the hairline gradually recedes, while for women, the hair on the top of the head (excluding the hairline) gradually tapers.

The napping experiment was carried out. The patient did not wash his hair for 5 days, and gently pulled up a bundle of hair containing 50 or 60 hairs with his thumb and forefinger, and counted the number of hairs pulled out. More than 6 hairs are hair loss, otherwise it is just normal hair loss.

Compare the photos to determine whether the hairline is receding and whether the hair is sparse. Taking two photos separated by several years under similar natural light sources can clearly see whether the hairline is receding or whether the hair is thinning. The amount of hair that falls off after shampooing. If for a long time, the average number of hair loss after bathing or shampooing exceeds ten times, you should pay attention to whether your hair is losing hair.

If you can't judge for yourself, you can also do dermoscopy. The microscopic characteristics of male alopecia patients are uneven hair shaft thickness, increased hair, or decreased hair quantity in hair follicle units.

Don't be afraid to judge yourself as seborrheic alopecia by the above methods. Minoxidil is an effective method to treat male alopecia and promote hair growth by promoting scalp vasodilation. At present, there are several major minoxidil brands in China, such as HeyBro, which focuses on cost performance and after-sales service. The previous model was popular in JD.COM because of its high sales volume and favorable rate. Generally speaking, it is really a good choice for friends with hair loss to spray hairline with minoxidil several times every morning and evening.