Circumcision suture generally choose chemical synthetic absorbable thread and non-absorbable thread, absorbable thread including sheep intestine thread, natural protein synthesized thread and so on. 1. Sheep intestinal thread: absorbable thread, sheep intestinal thread is extracted from the sheep’s intestinal mucosa, mostly synthetic, sheep intestinal thread is rich in collagen, about one month after circumcision can fall off on its own, applicable to circumcision, human tissue suture, not for cardiovascular and nervous tissue, if circumcision surgery for one month suture line has not come off, you should consult a doctor. 2. Natural collagen synthetic thread: an absorbable thread, taken from animal tendon parts, with high collagen content and strong resistance to tension, it can fall off by itself in about half a month after circumcision, and is used to close wounds, muscle tissues, etc., and should not be overdrawn on the wound, so as not to cause the thread to break, if the circumcision suture continues to be unattached or discomfort occurs, it should be timely to consult a doctor. 3. non-absorbable line: refers to the body is not degraded, absorption of medical sutures, the need to remove the line after surgery, commonly used silk thread, Priline line, etc., commonly used in clinical ligation hemostasis, suture hemostasis, etc., circumcision surgery surgery, non-absorbable line to be removed, too long a period of time is likely to lead to inflammation, foreign body reaction, etc., at present, clinical circumcision is less commonly used. If you need to perform circumcision, surgical sutures need to be based on the patient’s own situation, under the formal guidance of the doctor to choose.