Why does bleeding recur a few days after curettage?

Generally, vaginal bleeding that occurs several days after a diagnostic curettage—following an initial period of cleanliness—may be caused by fluctuations in uterine healing, excessive physical exertion, endometritis, poor uterine involution, or retained intrauterine tissue. If any discomfort arises, prompt consultation at a reputable hospital is recommended for proper evaluation and treatment. A detailed analysis follows:

1. Fluctuations in Uterine Healing

After diagnostic curettage, the uterine wound surface has not yet fully healed; minor shedding of scabs from the wound may cause light bleeding. Rest in bed, minimize physical activity, maintain external genital hygiene, and avoid spicy, cold, or raw foods.

2. Excessive Physical Exertion

Postoperative fatigue can stimulate pelvic congestion, impair hemostasis at the uterine wound site, and lead to recurrent bleeding. Ensure adequate rest, avoid heavy lifting or strenuous labor, maintain regular sleep-wake cycles, and promote overall physical and mental relaxation.

3. Endometritis

Inadequate postoperative hygiene may allow pathogenic microorganisms to invade, causing endometrial hyperemia, edema, delayed wound healing, and subsequent bleeding. Antibiotics such as amoxicillin capsules, azithromycin dispersible tablets, or clindamycin capsules may be prescribed per physician instructions. Keep the external genitalia dry and clean, and avoid tub bathing.

4. Poor Uterine Involution

Weakened uterine contractility impedes timely expulsion of intrauterine blood accumulation, resulting in intermittent bleeding several days post-procedure. Under medical supervision, uterotonic agents—including motherwort granules, newborn transformation granules, or oxytocin nasal spray—may be administered to enhance uterine contractions. Avoid prolonged sitting or lying down in daily life.

5. Retained Intrauterine Tissue

Small amounts of endometrial tissue remaining in the uterine cavity after curettage may trigger abnormal uterine contractions, leading to intermittent bleeding. Medical evaluation is essential; if significant retention is confirmed, hysteroscopic removal of retained tissue is indicated. Postoperative anti-infective care must be diligently followed.

In daily life following the procedure, maintain cleanliness and dryness of the genital area, abstain from sexual intercourse for the short term, consume a balanced, nutrient-rich diet, balance work and rest to facilitate recovery, and schedule routine gynecological follow-up examinations to screen for intrauterine abnormalities.