Every facet of science and technology has seen the arrival and solidification of the field of nanoscience. The field of healthcare will witness great biomedical marvels because of nanoscale manufacturing technologies and instruments, including nanomachines, diagnostic tools, and nanomedicine, among many other applications. In the domains of diagnostics, regenerative medicine, disease treatment, dentistry, tissue engineering, oncology, gene therapy, drug delivery, and therapeutics, nanotechnology is demonstrating fruitful and advantageous applications. Scientists are working to harness the potential applications of nanotechnology in the diagnosis, treatment, and prevention of diseases, having recognized its benefits for the medical field. A thorough analysis has been carried out to integrate the most recent information regarding nanotechnology in healthcare in all of its facets, including how the technology is helping the healthcare sector, its long-term effects on health, and potential future remediation suggestions.