Dear service user, Thank you for writing to us. I understand your concerns. You said that you are unable to have a child despite of having active sex life for last one and half year with your partner. Masturbation is similar to sex with female. What the penis do in vagina, it does same in folded hand during masturbation. Sex with female does not cause any health hazards so how masturbation can do...! Masturbation does not reduce sperm count. Semen is simply a body fluid produced continuously by genital organs. It is not that semen amount is limited in body. Both of you should consult infertility specialist for investigating the cause of inability to conceive. Wish you both good health.