Other causes could be polycystic ovarian syndrome, diseases of pituitary gland, hormonal
imbalance of estrogen and progesterone and
uterine abnormalities like fibroid and cervical dysplasia. Your doctor may consider tests like blood sugar levels, thyroid function test, prolactin, follicle-stimulating hormone (FSA), estrogen, and testosterone. Imaging studies, such as ultrasound, X-ray, and CT scan may also be recommended in certain individuals.