How do I prepare for an endometriosis ultrasound, and will it hurt?

Preparation depends on the type of ultrasound. For a transvaginal ultrasound, you’ll typically come in with an empty bladder, while a transabdominal view may require you to drink water beforehand so your bladder is full. In some situations—especially if bowel involvement is a concern—your imaging team may recommend a light bowel prep, so it’s worth confirming the instructions when you schedule.

During the exam, it’s common to feel pressure and sometimes mild cramping, particularly with the transvaginal portion, but it should be tolerable. If you have sharp pain or your symptoms flare, let the sonographer know right away so they can pause, change technique, or adjust pressure. If you’re someone who tends to have significant pelvic pain with exams, our team can help you plan ahead so the imaging is as comfortable and useful as possible.