What is the reason for the lack of semen

There are three reasons for low semen volume. One is that semen production is low, and it needs to be evaluated in the hospital for treatment. The other is that it is difficult to produce sperm, and it can be operated after examination. The third is that there are too many interference factors controlled by the center that cause it to not be completely ejected. You need your own psychological counseling. You can also seek guidance from a psychiatrist or use drugs to relieve anxiety.