Hyperspermia Treatment and Cure: What to Know In a 2013 study, less than 4% of men had hyperspermia. This condition means they make too much semen when they ejaculate. People with hyperspermia release 5.0 to 6.5 milliliters of semen, more than the usual 2 to 5 milliliters. Hyperspermia might slightly increase the risk of miscarriage and fertility problems. But, we…