Erectile Dysfunction
Sperm cannot come to the ejaculate. Blockages in the different ducts that carry the sperm from the testes to the urethra can cause problems for sperm transportation.
What Causes Blockage of Sperm Transport
Repeated infections, surgery (such as vasectomy), swelling or developmental defects can cause blockage of tube which transport sperm. With a blockage, sperm from the testicles can't leave the body during ejaculation.
Symptoms
The main sign of male infertility is the inability to conceive a child. There may be no other obvious signs or symptoms. In some cases, however, an underlying problem such as an inherited disorder, a hormonal imbalance, dilated veins around the testicle or a condition that blocks the passage of sperm causes signs and symptoms.
