Causes of subfertility

The most common causes of subfertility include:

• Sperm-relates deficiencies (concerning the concentration, motility and morphology of spermatozoa)
• Ovulation disorders
• Hostile behavior of cervical mucus and cervical disorders
• Uterine disorders
• Abnormalities of the fallopian tubes (obstruction or adhesions)
• Endometriosis
• Increased age of woman
• Lifestyle (smoking, alcohol consumption, working environment)
• Unexplained sub/infertility, which occurs in a considerable percentage (25-30%) of subfertility cases