3D printing has the advantages of customization and low production cost.  The potential value and applications of these features in medical field have led this technology to stimulate the revolution of medicine.

Customization: the most prominent advantage 3D printing has in medical field is the ability to create specific medical products and devices freely based on the information obtained from every single patient.

Low production cost: another advantage 3D printing has in medical field is its low production cost.

1. Due to the low requirements of production space and labor, the low-cost feature has made 3D printing competitive among small production industry.
2. Most of the implants are expensive due to the metallic additives in these objects. For example, traditionally, acetabular cups are made by CNC machining, then covered with a biocompatible coating.  By leveraging 3D printing technology, we can modify the density of the implant to form a porous surface structure.  With such surface structure, we no longer need to cover the implant with a bio compatible coating, leading to the reduction on production coast.
3. Rapid manufacture: 3D printing gives engineers the ability to deliver a large number of products within only few hours. Comparing with more traditional manufacture methods which require milling and forging, 3D printing can save us a great amount of time.  Meanwhile, 3D printing can improve the resolution, precision, accountability, and repeatability of traditional manufacture process.