If there is indeed a polyp in the menstrual blood, which is most often the case clinically because of a localized cervical polyp, which in the case of a particularly thin tip will flow out of the vagina during menstruation, it is advisable to send the polyp for pathology. It is also important to distinguish whether it is a polyp or the endometrium, because the endometrium normally sheds its lining during menstruation. However, this endometrial shedding is often in the form of fragments of endometrial lining that flow out of the vagina and cannot be seen without attention. If the endometrium is overactive or has other pathologies, it will shed a large amount of endometrium, and a large amount of endometrium is similar to a rotting flesh, so it is crucial to distinguish between endometrium and polyps. It is recommended that when tissue is found it is best to send it for pathologic testing.