The aim of this study is to compare between body-temperature to room-temperature contrast media used during hysterosalpingography. We hypothesize that warmed medium will reduce pain associated with the procedure.

Infertility occurs in about 15% of all couples. One of the common methods for evaluation of mechanical infertility is hysterosalpingography (HSG). Several reports have shown that this common procedure is associated with moderate pain, i.e. around 5 on a visual analog scale (VAS)of 1-10. It is therefore important to find modes for pain reduction for HSG. According to a report on sonohydrosonograpy, a similar technique using sonography, insertion of media warmed to body temperature into the uterus significantly reduced the pain during the procedure compared with media at room-temprature. The use of room-temperature media is the routine in our institution, as well as in many others. A comparison between the media at different temperatures has not been reported so far.

We plan to perform a prospective trial in which patients referred for HSG will be randomized to the procedure using either warmed or room-temperature media. we will asses pain levels using VAS during the procedure.

Inclusion Criteria:

• Diagnosis: infertility
• sex: female
• age: 18-45

Exclusion Criteria:

• active pelvic inflammotory disease
• known sensitivity to contrast medium