Causes of anovulation -
° Primary ovarian dysfunction
- Genetic, e.g. Turner’s syndrome 1%
- Autoimmune
° Secondary ovarian dysfunction
- Disorders of gonadotrophin
regulation - Hyperprolactinaemia 15%
- Functional
- Weight loss 10%
- Exercise
- Gonadotrophin deficiency
- Pituitary tumour
- Pituitary infarction 4%
- Pituitary ablation
- Polycystic ovary syndrome