What causes bloody vaginal discharge a few days before menstruation, and what should be done about it?
May 29, 2023
Source: Cainiu Health
Dr. Lv Aiming
Introduction
Bloody vaginal discharge a few days before menstruation may be a normal physiological phenomenon, or it could result from pathological factors such as luteal phase defect or endometrial polyps, which require targeted treatment. Specifically, a few days before the onset of menstruation, only a small amount of endometrial tissue sheds, resulting in minimal bleeding. If this blood mixes with vaginal discharge, it may cause the aforementioned condition.
Blood-tinged vaginal discharge a few days before menstruation may be a normal physiological phenomenon, or it could result from pathological factors such as luteal phase defect or endometrial polyps. Targeted treatment is required depending on the cause. The specific analysis is as follows:
1. Physiological Factors
A few days before the onset of menstruation, slight shedding of the endometrium can result in minimal bleeding. If this blood mixes with vaginal discharge, it may lead to the aforementioned condition. This is a normal physiological process—essentially the beginning of menstruation—and typically resolves on its own once the menstrual period ends.
2. Pathological Factors
a. Luteal Phase Defect
Poor lifestyle habits such as chronic sleep deprivation and smoking may lead to luteal phase defect. In such cases, progesterone levels drop significantly, which can easily cause abnormal bleeding and thus result in this symptom. Treatment may include medications such as progesterone capsules (e.g., dydrogesterone tablets) under a doctor's guidance.
b. Endometrial Polyps
Endometrial polyps may develop due to chronic endometritis. If a person engages in vigorous physical activity in daily life, the polyps may become irritated or abraded, leading to bleeding. When this blood mixes with vaginal discharge, it produces the described symptom. It is recommended to visit a hospital for evaluation and, if necessary, surgical removal under medical supervision.
In addition to the above, conditions such as vaginitis, cervicitis, and pelvic inflammatory disease may also cause this phenomenon. It is advisable to seek timely medical evaluation to avoid potential adverse effects on health.
