Why does the blood level remain at 100 IU/L and not decrease after taking mifepristone for half a month?

Under normal circumstances, "blood value" refers to the level of human chorionic gonadotropin (HCG) in the blood. Mifepristone is a medication used to terminate early pregnancy and is commonly available in tablet or capsule form. If the HCG level in the blood does not decrease after 15 days of taking mifepristone, it may be due to factors such as failed termination of pregnancy, drug resistance, ectopic pregnancy, cervicitis, or endometriosis. It is recommended to seek medical attention promptly and receive appropriate treatment. Detailed analysis is as follows:

1. Failed Termination of Pregnancy

If the dosage is insufficient, the drug is used improperly, or the gestational period is too long, the medication may not achieve the desired effect, resulting in unsuccessful termination of pregnancy and persistent HCG levels. It is advised to visit a hospital promptly for evaluation and consider uterine evacuation (dilation and curettage) as a treatment option.

2. Drug Resistance

If resistance to mifepristone develops, the drug's effectiveness may be reduced, leading to no decline in blood HCG levels. Adverse reactions such as vomiting or diarrhea may also occur, affecting drug absorption and efficacy. It is recommended to switch medications under a doctor’s guidance to help alleviate symptoms.

3. Ectopic Pregnancy

If the embryo implants outside the uterus, such as in the fallopian tube, mifepristone may not effectively terminate the pregnancy, causing HCG levels to remain elevated. Prompt medical consultation is advised, and treatment options such as salpingectomy (removal of the fallopian tube) may be recommended by a physician.

4. Cervicitis

Following mifepristone use for pregnancy termination, infection-induced cervicitis may prevent a rapid decline in blood HCG levels. It may also impair endometrial recovery and delay the completion of pregnancy termination. Treatment may include antibiotics or anti-inflammatory agents such as azithromycin capsules, trichosanthes kirilowii capsules, or minocycline hydrochloride capsules, as prescribed by a doctor.

5. Endometriosis

If endometrial tissue grows outside the uterine body, forming endometriosis, it may interfere with the effectiveness of mifepristone, resulting in HCG levels failing to drop as expected. Patients may also experience symptoms such as lower abdominal pain and menstrual irregularities. Under medical supervision, medications such as danazol capsules, gestrinone capsules, or norethisterone tablets may be used for treatment.

During medication use, it is important to maintain healthy lifestyle habits and avoid consuming spicy or irritating foods such as Sichuan pepper, chili peppers, and garlic, as these may hinder recovery.