many reasons caused by menstruation, such as endocrine disorders, gynecological inflammation, mental changes in the environment, anemia, etc. There may be endometrial
own reasons, such as endometrial
endometrial lesions caused by tuberculosis or abortion caused by endometrial curettage
thin so less likely to cause prolonged amenorrhea
or menstrual infertility, etc., I suggest you go to hospital, after a clear cause of positive symptomatic treatment, so as not to affect their health. to find the cause of targeted therapy.