Does endometritis cause irregular bleeding?

Jul 05, 2025 Source: Cainiu Health
Dr. Zhang Lu
Introduction
Inflammation invades the endometrium, causing congestion, edema, and making the endometrial tissue fragile and prone to damage, with capillary rupture leading to bleeding. In cases of mild inflammation, bleeding symptoms may not be obvious, manifesting only as slight menstrual cycle irregularities or prolonged menstruation; as the inflammation worsens, the endometrium remains in a state of persistent injury, resulting in intermenstrual vaginal spotting, which appears as dark red or brownish discharge.

Under normal circumstances, endometritis may cause irregular bleeding. If abnormalities occur, timely medical attention is recommended. Detailed analysis is as follows:

Inflammation affecting the endometrium causes congestion and edema, making the endometrial tissue fragile and prone to damage, which can lead to capillary rupture and bleeding. In mild cases, bleeding symptoms may not be obvious, manifesting only as slight menstrual cycle irregularities or prolonged menstruation. As the inflammation worsens, the endometrium remains damaged, leading to intermenstrual vaginal spotting, usually dark red in color or mixed with brownish discharge. This is often accompanied by increased vaginal discharge that is thick, malodorous, and some patients may also experience lower abdominal pressure or pain, and fever.

If the inflammation is not effectively controlled over time, persistent endometrial lesions may develop, affecting normal endometrial repair and shedding, resulting in more frequent and irregular bleeding. In severe cases, the bleeding volume may increase, similar to or even heavier than menstrual flow, and may lead to systemic symptoms such as anemia and fatigue. Additionally, inflammation can impair normal endometrial physiological function, affecting embryo implantation and causing damage to fertility.

When experiencing irregular vaginal bleeding or abnormal vaginal discharge, prompt medical evaluation is necessary. Once diagnosed with endometritis, active cooperation with treatment is required. During treatment, attention should be paid to maintaining genital hygiene, avoiding sexual intercourse, and regular follow-up examinations to ensure complete elimination of inflammation and prevent recurrence that could affect reproductive health.

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