Im 23. by blood work imean hormone , cholestorel and all std's came back normal/negative. whats an ultrasound of the uterus_ please answer!?

Ultrasound: An ultrasound is a type of imaging study used to visualize part of the body. It is most commonly associated with pregancy, but has hundreds of uses.It is noninvasive and painless. It is also safe and relatively inexpensive(compared to other radiology tests).

Uterus ultrasound: This is more commonly called a pelvic ultrasound. There are two ways to perform it. A "transabdominal" pelvic ultrasound scans the pelvis from an external approach over the lower abdomen/pelvis, and a "transvaginal" or internal scan uses a probe inserted into the vagina. Sometimes both are performed.