You may need to undergo an ultrasound for a variety of reasons. Ultrasound may be used, for example, to:

  • Assess a fetus
  • Diagnose gallbladder disease
  • Evaluate flow in blood vessels
  • Guide a needle for biopsy or tumor treatment
  • Evaluate a breast lump
  • Check your thyroid gland
  • Study your heart
  • Diagnose some forms of infection
  • Diagnose some forms of cancer
  • Reveal abnormalities in the genitalia and prostate
  • Evaluate abnormalities of the muscles and tendons
Feb. 23, 2012