If your period hasn't come for a month and you're not pregnant, what should you do?

Patient's question:

April 15

Doctor's answer:

Hello! The causes of menstrual disorders can be divided into two major categories:
1. Neuroendocrine dysfunction: This primarily involves instability or defects in the hypothalamic-pituitary-ovarian axis, which is known as menstrual disorders.
2. Organic lesions or drug-induced causes: This includes local inflammation, tumors, and developmental abnormalities in the reproductive organs; malnutrition; intracranial disorders; other endocrine dysfunctions such as thyroid, adrenal cortex dysfunction, diabetes, Sheehan's disease, etc.; liver diseases; blood disorders, etc.