What is a sonohysterogram?
Sonohysterograms are performed to evaluate the uterine cavity. A few milliliters of sterile fluid are inserted into the cavity of the uterus. This slightly distends the cavity and allows us to examine whether the wall and lining of the endometrium is smooth or irregular. Sonohysterograms can verify the presence of a uterine fibroid, septum, polyp, or thickening of the endometrial lining, and can possibly avoid the need for a diagnostic surgical procedure.
How is it performed?
A speculum is placed into the vagina and the cervix is wiped with a disinfecting soap. A very thin flexible plastic tube is inserted inside the cervix. The tube is similar to the size of a spaghetti noodle. Few patients can tell when the tube is inserted aside from the fact that you may experience a slight cramping or tugging sensation. The speculum is removed, and the vaginal ultrasound transducer is inserted into the vagina. Sterile water will then be injected through the tubing, which will distend the uterine cavity and allow for direct real time visualization. Typically we use less than two tablespoons of sterile fluid to completely visualize the cavity. After all necessary information is obtained the ultrasound transducer and tubing are removed. Most times the entire study will take less than 15 minutes and patient discomfort is minimal
Preparation for the exam:
No special preparation is required for a sonohysterogram. You do not need to have a full bladder and you do not need to drink before the exam.
The results are discussed immediately following the procedure, and you may resume normal activities.