A varicocele is an abnormally enlarged and twisted (varicose) vein in the spermatic cord that connects to the testicle. Varicoceles are found in about 15% of all men and in about 40% of infertile men, although it is not clear how much they affect fertility or by what mechanisms. They can raise testicular temperature, which may have effects on sperm production, movement, and shape.
Age-related sperm changes in men are not...
Read moreDear Dr. Motola, I have been showing slight blood in my semen for the past few months and my doctor has given me antibiotics but it has... Read more »
Men can produce healthier sperm and improve their fertility by having daily sex, an Australian study has found. Researchers enrolled 118 men whose... Read more »
A hormone-antioxidant combination therapy appears to improve sperm count and motility in infertile men, according to an Egyptian study. Read more »
Results from a new study show that obese men have sperm that have less mobility than the sperm of thinner men. This study adds to previous trials... Read more »
Spanish researchers have found that men who eat healthier diets may also have healthier sperm. For their study, the scientists looked at the diets of... Read more »
Spanish researchers have found that professional cyclists have poorer sperm quality than other men. The researchers say heat from wearing tight... Read more »