Why do women need a dilation and curettage (D&C) after miscarriage?

"Dilation and curettage" (D&C) usually refers to the surgical procedure known as uterine evacuation. In general, women undergo D&C after a miscarriage primarily to prevent complications such as retained embryonic tissue, poor uterine contraction, intrauterine infection, coagulation disorders, and intrauterine adhesions. If a woman experiences discomfort or abnormal symptoms following a miscarriage, it is recommended to seek timely medical attention at a正规 hospital. Specific reasons are analyzed as follows:

1. Retained embryonic tissue

After spontaneous or medical abortion, residual embryonic tissue or placental fragments may remain in the uterus. If not promptly removed, these residues can interfere with uterine contraction and recovery. Therefore, it is necessary to undergo D&C at a正规 medical facility, where surgical instruments are used to remove the remaining embryonic tissue.

2. Poor uterine contraction

After abortion, the uterus needs to contract effectively to control bleeding and return to its normal shape. D&C promotes uterine contraction through mechanical stimulation, helping the uterus recover more quickly to its pre-pregnancy state and reducing both blood loss and duration of bleeding.

3. Intrauterine infection

The uterine environment is vulnerable to bacterial invasion after abortion, especially when residual tissue is present, which increases the risk of infection. D&C helps promptly eliminate these sources of infection, thereby preventing intrauterine infections.

4. Coagulation dysfunction

During abortion, damage to the endometrium combined with pre-existing coagulation disorders—where blood clotting ability is reduced—can lead to prolonged, uncontrolled bleeding. Performing D&C to promptly remove intrauterine remnants can prevent secondary coagulation abnormalities caused by prolonged hemorrhage.

5. Intrauterine adhesions

After abortion, if the endometrium is damaged, intrauterine adhesions may develop, affecting normal menstrual flow. During D&C, not only are residual tissues removed, but injured areas can also be repaired, thus improving or preventing intrauterine adhesions.

After undergoing D&C, it is important to maintain healthy lifestyle habits, including regular作息, sufficient sleep, and adequate rest, all of which help sustain normal physiological function.