endometriosis is hard to find in some women. to find endometriosis in a woman a doctor may order many medical tests. these tests may be a pelvic exam and an ultrasound. when a woman has a pelvic exam the doctor will feel for lumps or scars. an ultrasound will help the doctor see cysts on the ovaries. the doctor may put a wand-shaped ultrasound probe into the vagina. a scanner may be used on your abdomen. another test may be used. it is called an mri. the mri takes a picture of the inside of the body.