What is TUV ultrasound ? For what reason do i have to go on it ?

Is this in relationship to your not becoming pregnant? Have you been experiencing painful periods and/or intercourse? What type of doctor has suggested the testing and what did they say would be checked?

You don't go on it. It is a specialized ultrasound primarily for thyroid testing.

As noted from ma0641, there is more than one "TUV" test and they would be used for different purposes.