Nanomedicine is the advanced application of nanotechnology in the healthcare fields and it is one of the key technologies of the 21 st century. A nanomedicine can be defined as the advanced applications of nanotechnology for the treatment, diagnosis, monitoring, and control of biological systems. Different sorts of nanocarrier (nanoparticles) are used for the manufacturing and to help delivery of target medicines. The term "nanomedicines" covers a number of materials and structures, for example, proteins, dendrimers, micelles, liposomes, polymers, emulsions, nanocapsules, nanoparticles, etc. Nanoparticles contain some exclusive properties and they can be used in conjunction with therapeutic components to facilitate the diagnosis and treatment of debilitating diseases like cancer, diabetes and so on. As the human body is comprised of different types of molecules; the availability of molecular nanotechnology permits dramatic progress in human medical services. Nanomedicines provide vital scope for medical profession, primarily for the diagnosis and treatment of diseases, and eventually for the improvement of knowledge of natural human biological systems and its functions. It is a developing group of therapeutics that involve the understanding of phenomena on the nanometer scale. Nanomedicines research needs expertise in a range of diverse fields (Life Sciences, Physics & Chemistry) and requires multidisciplinary team members. Future applications of nanomedicine in medical science will be reflected by using nanorobots for detection and treatment of various diseases.