The pain associated with IUI is very mild compared to tubalography and can be considered almost painless. For a tubalogram, the doctor places a hollow tube into the woman’s uterine cavity and then pumps up a water bladder to hold it in place. This water bladder will be very sensitive to the uterus of a woman who has not been pregnant and will cause a feeling of pressure, soreness and swelling. In addition, a contrast injection is performed to see how well the contrast passes through the fallopian tubes. During this process, if the fallopian tubes are not open, the contrast medium will accumulate in the uterine cavity and the proximal part of the fallopian tubes, causing the patient to feel a very sore and painful uterus. If the fallopian tubes are open, the pain is not as pronounced during the injection of the contrast medium. Therefore, the level of pain during tubal imaging depends on whether the fallopian tubes are patent or not. If the fallopian tube is patent, the pain is not particularly obvious; if the fallopian tube is not patent, the pain will be very obvious. In addition, in some patients, irritation of the cervix or the wall of the uterine cavity leads to excitation of the nerve endings and increased vagal reflexes, causing the so-called abortion syndrome. Artificial insemination, a very thin tube, this thin tube injected into the uterine cavity and does not use a water bladder to fix, only the doctor needs to use his hand to fix the position, a small amount of semen injected into the uterine cavity. So, almost the whole process down, the woman is not feeling anything, so there is no pain.