(Disclaimer: This article is for general use only. To protect patient privacy, the information in the following content has been processed.) Abstract: This is a case of a 27-year-old pregnant woman who had been induced for a large month, and this pregnancy resulted in abdominal pain, vaginal bleeding and other symptoms of preterm abortion due to increased work strain and mental stress. She was diagnosed with cervical insufficiency and was given an emergency cervical cerclage and postoperative treatment with ritodrine hydrochloride injection to preserve the fetus. The patient was treated with a cervical cervix ligation, and after surgery, she was given ritodrine hydrochloride injection and ritodrine hydrochloride tablets. The last menstruation was on August 9, 2020, and the ultrasound examination at 6 weeks of menopause indicated early intrauterine pregnancy, with a due date of May 16, 2021. She had her first period on August 8, 2020 and her last period on August 8, 2020. However, in the last half of the month, the unit often worked overtime to cope with the examination, and the work pressure and mental stress were so great that the patient experienced tightness and distension in the lower abdomen, but no obvious abnormality was seen in the system ultrasound examination one week ago, so the abdominal discomfort did not attract the patient’s attention. On January 22, she had a small amount of vaginal bleeding and lower abdominal distension, so she went to the hospital and had palpable irregular contractions with normal fetal heartbeat, and the outpatient diagnosis was: 3 pregnancy and 0 labor, 23+ weeks of pregnancy with live fetus and preterm abortion, so she was admitted to the hospital. After admission, she was immediately examined by routine blood, leucorrhoea, electrocardiogram, fetal ultrasound and cervical function ultrasound, among which the cervical function ultrasound indicated shortening of the cervix and formation of a funnel at the endocervix. The doctor told her that increased mental stress, fatigue, and induction of labor in large months may lead to cervical insufficiency, shortening of the cervix and dilatation of the uterine orifice, resulting in miscarriage, and that the effective length of the cervical canal was significantly shortened to 0.9 cm, so she was advised to undergo cervical cerclage and fetal preservation treatment as soon as possible. After the operation, she was given ritodrine hydrochloride injection and ritodrine hydrochloride tablets for fetal preservation treatment. After cervical cerclage, the patient was advised to rest in bed as much as possible. After the administration of ritodrine hydrochloride injection for fetal preservation, the patient’s abdominal distension and abdominal tightness were significantly relieved, but the drug tended to cause an increase in heart rate, so close observation of cardiac monitoring was given. After the fetal preservation treatment, the patient no longer had obvious contractions and no vaginal bleeding, but the fetal heart rate was slightly fast, which was considered to be related to the use of drug fetal preservation treatment for pregnant women, so the patient was instructed to stop using ritodrine hydrochloride injection and switch to oral treatment with ritodrine hydrochloride tablets. After 3 days of observation, the patient showed no signs of miscarriage, the treatment was effective, the contractions were suppressed, and the repeat ultrasound indicated that the cervical length was normal and the pregnancy continued, so she was discharged from the hospital. IV. Precautions It is glad that the patient can continue the pregnancy after treatment, but it is recommended that the patient must do regular maternity checkups. Because of the side effects of Ritodrine hydrochloride tablets, which may lead to palpitations, rapid heartbeat, vomiting, liver function damage and other abnormal manifestations, the patient should review regularly and seek medical attention immediately in case of serious damage. If no abnormalities are seen, the oral Ritodrine hydrochloride tablets can be gradually reduced according to the condition until the medication is stopped under the guidance of the doctor, never stop the medication suddenly on your own and return to the hospital at 37 weeks of pregnancy to remove the cervical suture. In general, the symptoms of miscarriage will be more nervous, which is not conducive to the preservation of fetus, so patients should maintain a good state of mind, distraction, family and friends should give more company and communication. During the period of fetus preservation, pay attention to rest, ensure sufficient sleep, avoid overexertion, and do not recommend to continue working until the condition is stable. V. Personal insight The patient in this case was suffering from mental stress and work strain, which led to the disruption of hormone secretion in the body and premature stimulation of adrenocorticotropin-releasing hormone, which caused contractions and led to cervical insufficiency, resulting in miscarriage or preterm delivery. Therefore, pregnant women should pay attention to not overworking, regulate their emotions, do regular maternity checkups, and seek medical advice as soon as abnormalities are detected, and according to the examination results, give individualized fetal preservation plans, such as cervical cerclage and medication to help preserve the pregnancy.