The success rate of IVF in Chengdu West China Second Affiliated Hospital is similar to that in other places. The success rate of IVF in general hospitals is very low and the cost is very high, which is not the best choice for patients. Male oligozoospermia and azoospermia can be recovered by clinical conservative treatment or surgical treatment. Usually, the common causes are reproductive infection, varicocele and partial obstruction of vas deferens. Microsurgery plays a key role in anti-inflammatory and symptomatic treatment. 1. Microsurgery can make patients with oligozoospermia conceive naturally, such as ligation of spermatic vein under microscope. 2. Microsurgery may make patients with obstructive azoospermia recover the patency of vas deferens and get pregnant naturally, thus avoiding the pain of IVF. 3. Microsurgery may make the testis of patients with non-obstructive azoospermia produce sperm or find sperm, and regain the opportunity to have children or test-tube babies (for example, we have our own genetic offspring, such as ligation of spermatic vein or testicular microsurgery under a microscope.