Ultrasonography is a diagnostic imaging techniques used to see internal body structures using echoes of ultrasound pulses. Ultrasound is sound waves with frequencies greater than 20,000Hz, which is inaudible to human ear. With the help of ultrasound, real time images and videos of motion of organ can be generated and seen. Sonograms (ultrasonic images) are created by sending pulses of ultrasonic sound into tissues using a ultrasonic called transducer, which conver electric current into sound wave and vice versa.. Tissue willl reflect the sound and echoes are recorded and displayed as image. Reflected sound wave is converted into electrical signals. Different tissue reflect the sound in different amout creating a visible images. This technique is painless, inexpensive and safer.