Nanorobotics-related equipment is used in the research of biological sciences. It has become a frontier of increasing relevance for several important industries, most notably healthcare in both diagnostic and therapeutic applications. The potential for nanorobots to progress biological research and improve global healthcare is enormous. New nanoparticles and nanodevices are expected to be used shortly with favorable effects on human health. The use of nanotechnology in the study of health is still in its infancy. For the biological sciences to use nanotechnology, processes, and instruments must be created that are accurate and powerful enough to interact at the cellular and subcellular level. With few to no side effects, tissue/cell-specific targeted treatments and/or therapies may be able to achieve significant therapeutic success. More accidental trials and in-depth research are required to properly transform nanorobots into humane models. The limitations, guiding principles, challenges, and possible future applications of nanotechnology in the area of health science for diagnostic and therapeutic applications of nanorobots are covered in this article.