3 doctors weighed in:
What causes infertility to occur in men?
3 doctors weighed in

Dr. Vance Harris
Family Medicine
2 doctors agree
In brief: Defective Sperm
Either the sperm produced are ineffective, not fully mature, have poor mobility or there are no sperm due to injury or development.
Even a low number of sperm makes it hard to get pregnant.

In brief: Defective Sperm
Either the sperm produced are ineffective, not fully mature, have poor mobility or there are no sperm due to injury or development.
Even a low number of sperm makes it hard to get pregnant.
Dr. Vance Harris
Dr. Vance Harris
Thank
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