Menstruation once every ten days or so in your fifties may be normal or abnormal. Common causes mainly include menstrual disorders, cervical cancer, endometrial cancer and other factors. 1. Normal: seen in ovulation bleeding, which can be mistaken as menstruation and is normal, no need to worry. 2. Menstrual disorders: Common causes include mental stress and endocrine disorders. If it is caused by mental stress, adjust the mentality and relieve pressure to improve the symptoms; if it is caused by endocrine disorders, the cause can be determined by sex hormone six and ultrasound, and then medication can be given according to the doctor’s prescription, such as drospirenone ethinyl estradiol tablets, and so on. 3. Cervical cancer: there may be irregular vaginal bleeding, especially after gynecological examination and sexual life, and cervical biopsy should be taken from suspicious area under colposcopy and sent to pathological examination for confirmation. After that, radiotherapy, such as cisplatin, cyclophosphamide, etc., or surgery, such as total hysterectomy with pelvic lymph node dissection, etc., should be given as prescribed by doctors. 4. Endometrial cancer: there may be irregular vaginal bleeding and fluid flow, etc. Segmental diagnostic scraping should be performed and the scrapings should be sent to pathological examination to confirm the diagnosis. After that, medication such as medroxyprogesterone acetate should be given as prescribed by doctor, and surgical treatment such as total hysterectomy with double adnexectomy can also be performed. There may be other reasons for menstruation in the fifties, such as blood disorders, taking certain medications, intrauterine placement of birth control devices, etc. You should go to the hospital in time and do the relevant examinations, and then follow the doctor’s instructions to standardize the treatment, and do not take unauthorized medication, in order to avoid delaying the condition, resulting in a bad outcome.