Vas deferens obstruction may be characterized by weak or painful ejaculation, pain in the perineum, and swelling of the scrotum. Symptoms such as thickening of the epididymis or vas deferens, absence, bead-like changes, or nodules may be palpable on palpation.
Generally unilateral vas deferens obstruction does not affect fertility. In bilateral vas deferens blockage, men become infertile due to the inability to expel sperms normally. Azoospermia due to vas deferens obstruction is pseudo azoospermia, also known as obstructive azoospermia, which is clinically characterized by normal testicular development but no sperm discharge, and normal testicular biopsy pathology.
The main causes of vas deferens obstruction are congenital abnormalities, inflammatory stenosis, traumatic or surgical injury, and tumors. It can be detected by means of seminal plasma biochemical test, scrotal exploration, semen analysis, ultrasound, genetic examination, etc. Treatment should firstly be directed at the primary pathology, and then consider the means of recanalization. Depending on the cause of the disease, a variety of ways such as lumpectomy and vasovas deferens anastomosis can be performed.
The phenomenon of vas deferens blockage, must promptly seek medical treatment, not blindly take medication on their own, so as not to delay the condition.