Causes of infertility are many and varied and involve male, female or a combination of factors. They include problems with:

• The production of eggs (ovulation)
• The production of normal sperm
• Female pelvic diseases such as endometriosis, damaged fallopian tubes, adhesions or fibroids
• Combination of male & female factors

In 10-20% of couples no cause will be found and this is called unexplained infertility.