The use of microwaves in biomedical engineering results in both energy-conserving and environmentally safe solutions. In this chapter, we mention the use of microwaves in medicine and how they improve and strengthen bone and tooth implants in the human body. It makes it possible to produce things quickly and at a low cost, with better structural properties than traditional approaches. This also leads to enhanced corrosion resistance and increased ability of the covering to aid osteoconductivity, which in turn improves how implants function. Additionally, microwave systems are explored in this chapter, since they reduce processing effort and time, use less energy, and help preserve the structures. Polymer scaffolds in tissue engineering can be prepared faster with microwave curing and are built with a highly porous design and good strength for cells to grow. Non-invasive microwave imaging techniques use the unique properties of body tissues and artificial intelligence to detect cancer and brain disorders with greater precision. They are safer and more portable than the older methods that use radiation to generate pictures. Researchers have found that using microwave-responsive methods for releasing drugs offers accurate results in treating cancer. Discoveries such as evenly heating the substrate, adjusting dielectric properties based on the material, and improving the manufacturing process still require efforts, using modern simulation tools. In the coming years, scientists will promote green manufacturing methods, evaluate whether emerging devices such as the MammoWave system are safe and accurate in medicine, and test whether nanomaterials can enhance the success of therapeutic treatments. The rise of microwave technology provides an important foundation for twenty-first-century advances in biomedicine, including more accessible and effective diagnostics, regeneration therapy, and patient care.