Many of the causes of infertility are unpreventable. But, sometimes you can take preventive measures to optimize your fertility. Some of these methods for prevention include:

• Quit smoking
• Drink only in moderation, or abstain
• Avoid exposure to chemicals and environmental toxins
• Limit sexual partners and practice safe sex to avoid STDs
• Keep your body weight in check, manage your weight if you are obese or severely underweight
• Keep in shape by eating a balanced, healthy diet and maintaining exercise
• Get treatment for any conditions that may affect fertility such as diabetes, endometriosis, asthma, and polycystic ovarian syndrome
• Avoid the use of all illegal substances, especially cocaine, LSD, heroine and marijuana