What is the reason why women do not go menstruation?

Menstruation has not gone, dripping situation, clinically mainly seen in the following situations: for women with sexual life, first need to check out the possibility of bleeding caused by pregnancy, HCG ultrasound can be clearly diagnosed. Secondly, there may be uterine and cervical lesions caused, such as endometrial polyps, uterine fibroids, cervical lesions, gynecological inflammation and intrauterine ring shift, etc. may cause menstrual dripping performance. If no obvious abnormality is found after examination, it may be considered to be caused by endocrine disorders, such as luteal atrophy and so on. Therefore, for this situation, it is necessary to see a doctor in time, according to the results of the examination, clear the cause, symptomatic treatment.