Fallopian tube patency is assessed using the HyFoSy method. This technique is performed during the follicular phase of the menstrual cycle, does not require sedation, and is minimally invasive.
To perform HyFoSy, a foaming gel is introduced through the cervix and a transvaginal ultrasound is used to determine whether the fluid is flowing freely through the tubes.
The indications for performing HyFoSy are: