With the development of microsurgery technology, many azoospermia patients have achieved their wish to be a father through this technology, but can all azoospermia patients achieve natural pregnancy through such a procedure? The answer is no. If the diagnosis of obstructive azoospermia is clear, epididymal-vasectomy surgery can be chosen to release the obstruction. 1.Patients who have a history of pregnancy, or whose sperm were detected in past semen examination but no sperm are found in the examination now, are suitable for surgery; 2.Patients with normal testicular size, normal vas deferens and normal sex hormone examination (such as LH, FSH); 3.Patients with severe bilateral varicocele, who may recover normal fertility after microsurgery; 4.Patients with severe bilateral varicocele, who may recover normal fertility after microsurgery after microsurgery may restore normal reproductive function; 4. Doing seminal plasma biochemical examination results if sugar, neutral glycosidase and other indicators can help doctors help determine the location of obstruction. For patients with testicular and testicular puncture that can retrieve sperm, they can also get pregnant directly through second-generation IVF; for some patients with IHH, endocrine hormone therapy can be used to restore fertility.