包茎和包皮过长是临床极为常见的疾病。若青春期前阴茎头仍不能逐渐外露者,应及时手术治疗。手术切除包皮常应用普通有针注射器作阴茎根部神经阻滞麻醉,虽然麻醉效果好,但因麻醉药物在局部形成水肿常影响手术切口整齐对位与对称,导致术后局部水肿,影响切口的早期愈合。我科 Phimosis and prepuce is a very common clinical disease. If pre-adolescent penis head still can not be exposed, should be timely surgical treatment. Surgical removal of the foreskin often used ordinary needle syringe for the root of the penis nerve block anesthesia, although the anesthesia effect is good, but the formation of anesthetic drugs in the local edema often affect the surgical incision neat alignment and symmetry, leading to postoperative local edema, affecting the early incision heal. My department