The 3D scan is a system used to identify the objects as they actually look. For this system a 3D scanner is used. It obtains all in rank about the object and stores it. This stored information is then used to replica a same object. This is used in many fresh applications like the simulation 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 different things and based on the disadvantages costs are fixed. Better arresting of picture will cost more than a mediocre quality. 3D scan have its advantages and limitations. Its limitations would be the hard to examine a shiny surface. But little modifications on the surface can make scanning possible. 3D scan is also made for the fetus. It helps us to see the survive movements of the child in the womb and also can see its different parts of the body. These scans are aid in shaping any deformations in the baby at a very premature stage. It is likely to get dual black and white or colour images of the object or the foetus.