Objectives: This is a protocol for a Cochrane Review (diagnostic). The objectives are as follows:. To determine and compare the diagnostic accuracy of visual tubal patency tests (hysterosalpingography (HSG), sono-hysterosalpingography (sono-HSG), magnetic resonance hysterosalpingography (MR-HSG), and outpatient transvaginal hydrolaparoscopy (THL)) for the diagnosis of tubal occlusion. Secondary objectives. To determine and compare the diagnostic accuracy of visual tubal patency tests (HSG, sono-HSG, MR-HSG, and outpatient THL) for the diagnosis of hydrosalpinx. To evaluate heterogeneity with regards to population characteristics (population risk stratification) and index test characteristics (contrast media, technology, operator skills).