There is generally no hope for a 12-week arrested fetus. If the fetus is judged to have stopped developing after various tests, it means that the fetus has died, and there is basically no hope at this time, and any treatment will not allow the fetus to continue to survive. If fetal arrest has occurred, it is best not to blindly carry out conservative treatment, you need to carry out timely clearance surgery to remove the residual material inside the uterine cavity, so as not to lead to intrauterine infections and other symptoms, if the treatment is not timely, it may have an impact on the mother’s body. During pregnancy, you need to regularly consult a doctor for various examinations to ensure that the development of the fetus is normal, and if there is any abnormal reaction, it is best to actively consult a doctor for examination and treatment.