Ultrasound is utilized to evaluate the major organs of the body. The thyroid, abdominal organs, and reproductive organs are thoroughly assessed. The abdominal organs consist of the liver, pancreas, gallbladder, kidneys, spleen, bladder, and prostate. In males, the testicles are evaluated, and any signs of a hernia or a hydrocele (fluid collection). The ovaries, uterus, and adnexal regions are evaluated in females.