A shortened menstrual cycle of 20 days may be due to physiological reasons, organic lesions, endocrine dysfunction and other reasons.
1. Physiological reasons: for example, mental stress, poor sleep, overwork, can lead to occasional shortening of the menstrual cycle, this situation more rest, relaxation will generally return to normal.
2. Organic lesions: shortened menstrual cycle, 20 days to menstruation may suffer from organic lesions, such as uterine fibroids, uterine polyps, uterine redundancy and so on.
3. Endocrine dysfunction: 20-day menstruation may also be related to endocrine dysfunction, such as luteal insufficiency, ovarian hypoplasia, thyroid disease, etc., which can lead to shortened menstrual cycle.
The 20-day menstruation can also be seen in other reasons, it is recommended that the patient timely medical care, improve the relevant examination, under the guidance of the doctor to clarify the cause of the disease, targeted treatment, to avoid delay in the condition.