It is normal for the fallopian tubes to be open but still swollen and painful with contrast. This is because the passage of the contrast medium through the fallopian tubes may cause irritation of the tubes, resulting in swelling and pain. Even if a woman’s fallopian tubes are open, during a tubal imaging procedure, the contrast medium may irritate the fallopian tubes and cause pain and swelling in the lower abdomen. Moreover, when the contrast agent passes through the uterus, it may cause uterine spasms, which may also cause a woman to experience abdominal distension. After the tubal contrast agent enters the abdominal cavity through the umbilical end of the fallopian tube, it will stimulate the abdominal viscera such as intestines, causing intestinal spasms, and women may experience pain in the lower abdomen. It is recommended to drink more water and increase the urine output after the tubal imaging, so that the contrast medium can be excreted as soon as possible to relieve the symptoms of abdominal distension and pain.