Causes for woman

• Ovulatory dysfunctions (polycystic ovary, elevated prolactin level, hypogonadotropic hypogonadism)
• Reduced ovarian reserve and advanced age (above 38)
• Endometriosis (chocolate cyst)
• Obstructed uterine tubes

Causes for man

• Problems in count, structure and motility of sperms
• Erectile dysfunction (erection problems)
• Anatomic problems of genitals (hypospadias-agenesis or obstruction of vas deferens etc.)
• Hypogonadotropic hypogonadism (lack of stimulating hormones secreted by the brain)

Other causes

• 15% of the couples do not have a significant disorder (unexplained infertility)
• Problems related to the immune system
• For determination of a healthy embryo in the patients with genetic disorders and repeated pregnancy loss