Hello,
Causes of post menopausal bleeding could be ovarian cyst, cervical malignancy, fibroids and endometriosis, diseases of pituitary gland, hormonal imbalance of
estrogen and progesterone andthyroid hormone imbalance. Your doctor may consider tests like thyroid function test, prolactin, follicle-stimulating hormone (FSA), estrogen, and testosterone. I agree with your doctor get a D+C and biopsy done.