What percentage of infertility cases are attributed to female factors?

• A. 25%
• B. 30%
• C. 40%
• D. 10%

Answer: (B)

Infertility is typically caused by a mix of factors in both partners, and female factors account for roughly one-third of cases. That means about 30% of infertility incidents are attributed to issues in the female reproductive system, such as ovulatory disorders, tubal problems, or uterine abnormalities. This makes 30% the best choice among the options because it sits in the commonly cited range used in practice and exams. While some sources cite higher figures (around 40%), and others lower, 30% is a well-supported, widely taught estimate. The remainder of cases come from male-factor infertility, both partners contributing, or cases labeled unexplained.