What causes yellow vaginal discharge after an abortion?

Abortion refers to an induced abortion procedure. In general, yellow vaginal discharge after an abortion may be caused by oxidation, vaginitis, cervicitis, endometritis, or postoperative infection. If yellow discharge occurs after an abortion, it is recommended to promptly visit a hospital for a gynecological examination to determine the underlying cause and receive appropriate treatment. Specific causes are analyzed as follows:

1. Oxidation: After an abortion, if personal hygiene is neglected and vaginal discharge is not cleaned promptly, it may turn yellow due to oxidation. This condition typically does not involve odor or itching. Maintaining good personal hygiene is sufficient; no special treatment is required.

2. Vaginitis: Following an abortion, the body's immunity is relatively low. Improper postoperative care or resuming sexual activity too early may allow pathogenic bacteria to enter the vagina, causing inflammatory infection. An overgrowth of harmful bacteria disrupts the normal vaginal flora, leading to yellow vaginal discharge, often accompanied by odor and itching. Medications such as metronidazole suppositories, tinidazole suppositories, or dual-azole suppositories may be used as directed by a physician.

3. Cervicitis: The abortion procedure can cause some degree of cervical injury. When pathogenic bacteria invade, they may trigger cervical inflammation, resulting in yellow vaginal discharge due to inflammatory stimulation. Treatment may include medications such as xiaomi suppositories, kanggongyan tablets, or baofukang suppositories under medical guidance.

4. Endometritis: Yellow vaginal discharge after an abortion may be caused by endometritis. The procedure can damage the endometrial lining. If accumulated blood within the uterine cavity has been completely expelled, persistent yellow discharge may result from poor hygiene or sexual intercourse, leading to endometrial inflammation. Symptoms may include abnormal discharge, changes in discharge color, and foul odor. Management includes improving the patient’s nutritional status and correcting water and electrolyte imbalances. Medications such as gynecological qianjin tablets, metronidazole tablets, or sustained-release gentamicin sulfate tablets may be used under a doctor’s supervision.

5. Postoperative infection: Fever, abdominal pain, increased secretions with a foul odor occurring within 1–7 days after surgery are usually due to bacterial infection. Common pathogens include anaerobic streptococci, hemolytic streptococci, staphylococci, Escherichia coli, among others, and most cases involve mixed infections with multiple bacterial types. Treatment may include intravenous penicillin sodium, amoxicillin sodium, or cefradine under medical supervision.

Improving lifestyle habits and dietary structure, along with maintaining good personal hygiene and keeping the external genital area clean and dry, can promote recovery.