The 3D scan is a system used to perceive the objects as they actually look. For this technique a 3D scanner is used. It obtains all in rank about the thing and stores it. This stored information is then used to model a similar object. This is used in many recent applications like the animation in movies and games. It is used in the remedial meadow also. A 3D scan helps to design false body parts in area of deceased part. 3D scanner can take images of vivid things and based on the disadvantages costs are fixed. Better detaining of picture will rate more than a moderate quality. 3D scan have its advantages and limitations. Its limitations would be the difficulty to scan a shiny surface. But some modifications on the surface can make scanning possible. 3D scan is also made for the fetus. It helps us to see the reside movements of the child in the womb and also can see its different parts of the body. These scans are assist in forming any deformations in the baby at a very premature stage. It is likely to get two black and white or colour images of the object or the foetus.