function onPlayerReadyVidible(e){'undefined'!=typeof HPTrack&&HPTrack.Vid.Vidible_track(e)}!function(e,i){if(e.vdb_Player){if('object'==typeof commercial_video){var a='',o='m.fwsitesection='+commercial_video.site_and_category;if(a+=o,commercial_video['package']){var c='&m.fwkeyvalues=sponsorship%3D'+commercial_video['package'];a+=c}e.setAttribute('vdb_params',a)}i(e.vdb_Player)}else{var t=arguments.callee;setTimeout(function(){t(e,i)},0)}}(document.getElementById('vidible_1'),onPlayerReadyVidible); (Reuters Health) - When it comes to using X-rays to check a woman’s reproductive system in search of a cause for her infertility, oil turns out to be better than water. A new study concludes that when doctors are debating whether to use a water-based or oil-based contrast fluid to inject into the egg-carrying tubes - part of a test known as hysterosalpingography - infertile women conceive more often with oil. The pregnancy rate after six months was 40 percent when the oil-based fluid was used versus 29 percent with a water-based contrast media.