Toxic effects related to tobacco, marijuana, and other drugs
Smoking may cause infertility in both men and women. In experimental animals, nicotine has been shown to block the production of sperm and decrease the size of male testicles. In women, tobacco changes the cervical mucus, thus affecting the way sperm reach the egg.
Marijuana may disrupt a woman's ovulation cycle, affecting the release of the egg. In men, marijuana use can decrease the sperm count as well as affect the quality of the sperm.
Heroin, cocaine, and crack cocaine use induces similar effects but places the user at increased risk for PID and HIV infection associated with risky sexual behavior.
When a couple is trying to have a baby, the advice for moms-to-be is plentiful --take prenatal vitamins, don’t drink alcohol, say no to sushi, get plenty of rest. But did you know a dad’s health at conception can affect the baby’s health as well?
"Many men may not realize that the health of their sperm is just as important as the health and viability of a woman’s egg," says Joseph Garza, MD. He's an obstetrician and gynecologist at the Advanced Fertility Center in San Antonio.
Research isn’t conclusive,...
In women, the effects of alcohol are related to severe consequences for the fetus. And chronic alcoholism is related to disorders in ovulation, which interferes with fertility. Alcohol use by men interferes with the synthesis of testosterone and has an impact on sperm concentration. Alcoholism may delay a man's sexual response and cause impotence by interfering with a man's ability to have an erection.