The 3D scan is a technique used to see 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 replica a similar object. This is used in many recent applications like the cartoon in movies and games. It is used in the remedial field 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 constant. Better capturing of picture will cost more than a medium quality. 3D scan have its advantages and limitations. Its limitations would be the difficulty to scan a glossy surface. But few modifications on the surface can make scanning possible. 3D scan is also make for the fetus. It helps us to see the live movements of the child in the womb and also can see its vivid parts of the body. These scans are helpful in determining any deformations in the baby at a very before time stage. It is possible to get both black and white or colour images of the object or the foetus.