Many cases of female infertility are due to problems with ovulation. Without ovulation, fertilization cannot occur. Signs that a woman may not be ovulating normally include irregular or absent menstrual periods.
Ovulation problems may be caused by one or more of the following:
- Polycystic ovarian syndrome (PCOS)
- An imbalance of hormones
- Thyroid issues
- Shortened menstrual cycles
- A cyst or tumor in the reproductive system
- Eating disorders such as bulimia or anorexia
- Excessive alcohol or drug use
- Excess weight/obesity
- A significant loss of body fat due to intense exercise
- High levels of stress