Yes, it is very common. In couples trying to conceive without success we find a sperm issue about 40-50% of the time, ranging from mild to severe sperm problems. Semen analysis is an important part of infertility testing. Sometimes the sperm issue is the only problem we find when we test both partners, but often there are male and female factors together. Even if the man’s sperm is ‘normal’ it helps a lot if the male partner is supportive.