It is done to radiological evaluation of Fallopian tube. It is done within 7-10th day of menstrual cycle. It is performed by injecting radio contrast either oil based or water soluble media via cervix into the uterine cavity. It shows the uterine alignment or contour, intrauterine polyp or any space occupying lesion, uterine anomalies like septate uterus, bicornuate uterus,arcuate uterus,tubal block at different sites of Fallopian tubes ,hydrosalphinx and can be diagnose tuberculosis of uterus, Fallopian tubes and other pathology.