Started bleeding again on the third day after hysteroscopic surgery.

In general, bleeding again on the third day after hysteroscopic surgery may be caused by physiological factors or pathological factors such as postoperative infection or disease recurrence. The specific details are as follows:

1. Physiological Factors

Hysteroscopic surgery is a minimally invasive procedure performed using a hysteroscope and can be used to treat conditions such as abnormal uterine bleeding, endometrial polyps, and intrauterine foreign bodies. If menstruation occurs after the surgery, postoperative bleeding is considered normal and does not require special treatment.

2. Pathological Factors

1) Postoperative Infection

Hysteroscopic surgery causes some local tissue damage. If proper care or hygiene is not maintained, infection may develop. Inflammation from the infection can lead to persistent bleeding. Treatment should be carried out under a doctor's guidance using medications such as levofloxacin hydrochloride capsules, roxithromycin capsules, and metronidazole tablets.

2) Disease Recurrence

If the original condition—such as abnormal uterine bleeding or endometrial polyps—recurs after surgery, bleeding may reappear. In such cases, prompt follow-up at a hospital is necessary, and repeat hysteroscopic surgery may be required.

Besides the above reasons, bleeding could also result from intrauterine foreign bodies, uterine fibroids, or cervical cancer. Because the underlying causes vary, treatment approaches differ accordingly. Regardless of the specific condition, timely and active treatment is essential to avoid delaying optimal management.