Table 1.

Causes of anovulation suitable for ovulation induction treatment

Hypothalamic

• Low concentration of gonadotrophin realeasing hormone (hypogonadotrophic hypogonadism)

• Weight or exercise related amenorrhoea

• Kallman's syndrome

• Stress

• Idiopathic

Pituitary

• Hyperprolactinaemia

• Pituitary failure (hypogonadotrophic hypogonadism)

• Sheehan's syndrome

• Craniopharyngioma or hypophysectomy

• Cerebral radiotherapy

Ovarian

• Polycystic ovaries

Other endocrine

• Hypothyroidism

• Congenital adrenal hyperplasia