The significance is great, take our country for example, we are a developing country with a huge population of 10 million patients with unfettered limbs alone, most of whom are disabled. Due to the lack of reconstructive surgery in the past, more than 3 million people have been amputated; the country has nearly 3 million bone defects and bone losses every year; and the trauma caused by car accidents and wars is even more countless. So, researching 3D printed bones could benefit more defective human children. What's more, 3D printing can also be used for medical diagnosis and surgical planning, and can create medical products, prototype devices, biological models, anatomical models, or scaffolds for biological tissues. What's even more impressive is the immediate application of medical 3D printing organs, vertebrae, which can be a great benefit to all mankind, this research is very meaningful. Recently, a biotechnology company in India, Pandorum Technologies has developed a 3D printed living liver tissue, simulating the human liver function, making the local pharmaceutical industry in exploring the latest drugs and vaccines have a new choice. It is also known to be the first company in India to develop a bio-3D printed liver tissue, laying an important foundation for the development of 3D printed human organs in the region. The artificial liver cells they have developed can survive for up to 4 weeks. There is currently a high demand in the medical community for bio-3D printed livers, which are the body's primary organ for defense against toxins and are also considered to be the most functionally complex organ in the human body. A breakthrough in 3D printing of artificial functional tissues for research will largely reduce animal and human testing, while helping researchers develop the latest drugs and vaccines. See here is not feel very incredible, there is an organ can be printed out maturely, so is it far from cloning.