Nowadays, multiple treatment modalities have been applied clinically to treat androgenic alopecia, such as Follicular unit transplantation(FUT), finasteride, platelet-rich plasma injection(PRP), etc. In this clinical trial, the investigators aim to analyze the effect of nanofat grafting on treating androgenic alopecia in male.

The investigators will treat the hair loss area of a patient by processed nanofat grafting. The participants were asked to come back 1、3、6、9、12 months after treatment for further follow-up.

Before and after the treatment, the hair and follicular will be assessed subjectively by satisfaction assessment, dermatoscope.

Inclusion Criteria:

• Male patients with androgenic alopecia aging from 18 to 50.
• No scars and wounds on the alopecia area.
• No skin disease or serious cardiovascular disease.
• Preoperative examinations remain healthy.

Exclusion Criteria:

• Serious chronic heart, liver, kidney, blood system disease
• Allergic diseases, skin inflammation or wounds
• Alopecia but not androgenic alopecia
• Acute or chronic infection
• Take anticoagulant drugs
• Active vitiligo, psoriasis, systemic lupus erythematosus