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.
By Rebecca Davis
Even after years of infertility treatments, Monica and Steve Klein couldn't get
pregnant. And while they were busy trying to create a new family, they forgot
about the one they already had--with each other. Our relationship expert helps
this couple find their way back to the intimacy they once shared.
When Monica and Steve Klein married in the summer of 2003, they immediately
started trying to have a baby. But the Deer Park, NY, couple wasn't able to
conceive, so their doctor...
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.