How to diagnose obstruction of the vas deferens

The diagnosis of vas deferens obstruction methods include medical history and symptoms inquiry, semen analysis, color Doppler examination, etc.

1, medical history and symptoms inquiry

doctor will ask medical history, including infertility problems, surgical history, sexual history, and understand whether there are symptoms related to vas deferens obstruction, such as persistent azoospermia ejaculation.

2, semen analysis

by semen sample analysis, can assess the number, quality and motility of sperm. If found no sperm in semen, may suggest the existence of vas deferens obstruction.

3, color Doppler examination

through scrotum or pelvic color Doppler ultrasound examination, can observe the structure and flow of vas deferens. If vas deferens obstruction, can be observed on ultrasound images dilated and accumulated semen.