If you go to work on the first day of IUD, you need not worry too much if there are no uncomfortable symptoms. If you have abdominal pain and backache, it will have an effect on your body and may affect the repair of the uterine lining. In general, it is recommended to take sufficient rest after IUD, and it is not recommended to go to work immediately on the first day after IUD. If you go to work at this time, there is no obvious discomfort, indicating that the uterine lining is more tolerant of the IUD, and there is no effect on the body. If you have abdominal pain, lumbago and other discomforts at this time, it means that the endometrium is less tolerant to the IUD, which will slow down the repair of the endometrium. If you experience significant discomfort after the implantation of the IUD and it continues to be unrelieved, it is recommended that you go to the hospital in time for standardized checkups and treatments under the guidance of your doctor.