Why does something fall out during menstruation?

It is possible to experience something falling out during menstruation, which could be a normal physiological phenomenon or related to pathological conditions such as miscarriage with expulsion of pregnancy tissue or endometrial polyps. An ultrasound examination is needed to determine the cause and guide appropriate management. Specific analysis is as follows:

I. Physiological Phenomenon

Menstruation occurs due to shedding of the endometrial lining. During menstruation, if large pieces of endometrial tissue are shed and expelled along with menstrual blood, it may feel like something is falling out.

II. Pathological Phenomena

1. Expulsion of Pregnancy Tissue After Miscarriage
After a miscarriage, pregnancy-related tissues and clotted blood within the uterine cavity may be expelled and mistaken for regular menstrual flow. Color Doppler ultrasound is recommended to evaluate the condition. Under medical guidance, medications such as Yimucao Granules or Xinshenghua Granules may be used to promote the expulsion of residual tissue.

2. Endometrial Polyps
Endometrial polyps may detach along with the shedding endometrium and be expelled with menstrual blood, appearing as blood clots or fleshy tissue. Hysteroscopic polypectomy at a hospital is generally recommended.

In addition, this could also be caused by other conditions such as uterine fibroids. If tissue-like material is passed during menstruation, close monitoring is necessary. If accompanied by abdominal pain or increased bleeding, prompt medical evaluation and treatment are required.