Transvaginal ultrasound is an examination of the female pelvis. It helps to see if there is any abnormality in the uterus (womb), cervix (the neck of the womb), endometrium (lining of the womb), fallopian tubes, ovaries, bladder or the pelvic cavity. It looks at the pelvic organs from inside the vagina using a special smooth, thin, handheld device called a transducer. This differs from an abdominal ultrasound, which uses a warm water-based clear gel applied to the skin of the abdomen and the transducer is moved gently across the pelvic area.