First of all the cause of irregularity
in periods needs to be found out.
are often caused by thyroid causes. It could be hypothyroidism, post pill amennorhea , polycystic ovarian syndrome or less frequently a pituitary tumor causing high prolactin levels or a hypothalamic disease. Diagnostic tests for PCOS are 2 hr GTT,serum androgen and testosterone levels,LH-FSH ratio,prolactin levels,TSH levels,17-hydroxyprogesterone levels and 3D ultrasound done.