What are the causes of dull pain in the lower right abdomen after abortion?

Abortion usually refers to induced abortion. In general, dull pain in the lower right abdomen after induced abortion may be caused by uterine contractions, adnexitis, postoperative infection, incomplete abortion, or intrauterine adhesions. Patients are advised to seek timely medical evaluation to identify the cause and receive appropriate treatment. Specific analyses are as follows:

1. Uterine Contractions

After abortion, intermittent uterine contractions may occur to help expel accumulated blood from the uterine cavity. This primarily manifests as backache, back pain, or dull pain in the lower left or right abdomen. These symptoms are considered normal and typically do not require special treatment. Adequate bed rest and keeping the abdomen warm are recommended.

2. Adnexitis

Adnexitis mainly involves inflammation of the fallopian tubes and ovaries. Pain in the lower right abdomen after abortion may result from secondary infection leading to adnexitis. Patients should promptly visit a hospital for treatment and, under medical guidance, take medications such as metronidazole tablets or doxycycline hydrochloride capsules.

3. Postoperative Infection

Poor surgical technique or inadequate personal hygiene after surgery may lead to intrauterine infection, causing dull pain in the lower right abdomen. In such cases, patients should seek medical attention promptly and, as prescribed by a doctor, use anti-inflammatory medications such as amoxicillin capsules or levofloxacin hydrochloride capsules for treatment.

4. Incomplete Abortion

If tissue within the uterine cavity is not completely removed during the abortion procedure, residual fetal membrane or placental tissue may remain. These remnants can repeatedly stimulate the uterus, causing right-sided lower abdominal pain after the procedure. If pain persists for a prolonged period, patients should seek prompt medical evaluation via ultrasound. For minor residuals, medication may be prescribed to promote expulsion; for larger amounts, a dilation and curettage (D&C) procedure may be necessary.

5. Intrauterine Adhesions

Intrauterine adhesions following surgery can also cause lower right abdominal pain, possibly accompanied by symptoms such as reduced menstrual flow or prolonged menstrual cycles. Patients may undergo surgical treatments such as hysteroscopy or adhesion separation procedures under medical guidance. Additionally, dietary adjustments are important, including avoiding raw, cold, and spicy foods.

Besides the above, abdominal pain following an abortion may also stem from bowel injury or the development of appendicitis. Patients are advised to seek immediate medical care if discomfort occurs after surgery to avoid delayed diagnosis and treatment.