No pregnancy, ten days late.

Not pregnant but menstruation delayed ten days, may be caused by a variety of reasons, including mental factors, drug factors, endocrine disorders, etc. 1. Mental factors Recent stress, mental stress, anxiety or irritability and other emotional problems, may lead to central nervous system and hypothalamus-pituitary-ovarian axis dysfunction, thus affecting the menstrual cycle. Keep a good state of mind, appropriate physical exercise such as jogging, swimming, etc., help to relieve mental stress. 2. Drug factors compound norethisterone tablets, ethinyl estradiol cyproterone tablets, diethylstilbestrol tablets, nilestriol tablets and other drugs, may interfere with normal menstrual regularity, resulting in delay. Usually after stopping or removing the triggering factors, the menstrual cycle will gradually return to normal. 3. Endocrine disorders The endocrine system has abnormal function or pathological changes, such as insufficient secretion of sex hormones, which may lead to delayed menstruation. Under the guidance of a doctor, six tests of sex hormones are carried out, and corresponding hormone drugs are taken according to the test results, such as dydrogestrel tablets, progesterone soft capsules, compound norethisterone tablets, etc. If menstruation is delayed for ten days, it is recommended to seek medical attention in time, carry out relevant examinations, such as ultrasound examination, sex hormone detection, etc., to clarify the specific reasons, and carry out targeted treatment or adjustment under the guidance of doctors.