hi found this really good answer from yahoo. com its about 7 years old but covers your problem very will. there are times that we cannot visualize the ovaries with either transvaginal or transabdominal ultrasound. i am unsure if any of these fit your situation and i mean no disrespect but here it goes. gas in the intestines can make it difficult to see the ovaries. everyone has gas or air in their intestines and the intestines are situated in the same area as the ovaries. air effectively blocks the ultrasound beam so nothing behind that air can be seen. an obese patient is harder to scan because when the ultrasound beam has to penetrate a lot of tissue it has weakened by the time it gets deep enough to see the organs. post menopausal ovaries can be hard to find with ultrasound. young ovaries are like grapes. fat and juicy. older ovaries are more like raisins. smaller and dried up! those young juicy ovaries are easier to see. if the uterus is large (due to past pregnancies or fibroids for example) the ovaries are pushed further towards your sides instead of nearer the midline of your body. if the ovaries are situated further out they are harder to see. with transabdominal ultrasound we use the bladder to help us see the ovaries. if the ovaries are not somewhat near the bladder we might not see them. with transvaginal ultrasound the ovaries need to be somewhat near the cervix. the transvaginal transducer (or camera) cannot see things unless they are within a certain distance from the cervix. it has a limited distance of penetration. the good news is that if you had ovarian cysts or a large mass on the ovaries they would be hard to miss. when we cannot see the ovaries we can be relatively sure that they are small and grossly normal. your doctor might ask you to do another ultrasound at some other point. in any event this is not an abnormal situation and it does happen to patients from time to time. source: i am an ultrasound technologist. do hope this helps you. good luck
i am post menopausal have pain and tenderness in pelvic area and my ultrasound could not find my ovaries. why? . also have prolaspe bladder