A standard ultrasound uses sound waves to view images. In case of a saline infused sonohysterogram sterile water is used to inflate the uterine cavity to get a clear picture. This procedure is used to detect abnormalities of the uterus and uterine cavity that may not be visible with an ultrasound.
This procedure is performed during the first part of the menstrual cycle after menstruation. Your gynecologist can provide you with the details of the procedure.
Saline infusion sonogram is a safe procedure. You may experience cramping, spotting and vaginal discharge for a day or two after the procedure is done. The only associated risk is that of a pelvic infection which is very rare. Call your doctor if you experience any fever or pain even after 2 days of the procedure.