Every day we are traveling to a new era of technological developments, one of which and at the same time the most exiting innovation is nanotechnology. Despite other benefits that come with this new area of science the most important is in terms of medical treatments. This essay will state the advantages and disadvantages of medical nanotechnology nowadays.Nanotechnology behaves very diverse regarding medical treatments, because it has a wide range of advantages and uses. To begin with, nanotechnology can be used to transport medicine or drugs into different parts of human body in a less harmful way, through tiny instruments called nanoparticles.. Some kinds of nanoparticles called the “gold-nanoparticles” have resulted effective in the treatment of cancer because of their ability to assimilate radiation. Once they enter inside the tumor cells they assimilate the energy and heat up until the cancer cell is killed. In addition, important implementation of nanomedicine is in terms of surgery. Extremely small surgical instruments and even robots are used today to perform microsurgeries with high preciseness, because they have nanocameras within which allows the doctor to have a close up look of the whole process. Furthermore, the visual dream of a world free of viruses has finally come to a real thing with nanorobots which are used as artificial white cells. They “hit and kill” a dangerous pathogen via a microscopic laser device mounted on it. On the other hand even though there are so many benefits from this new field of technology people still seem to be skeptical because of the potential risks it might have. When speaking of risks every new invention has its other side of the coin. Firstly nano particles can be plugged in our body through skin, breathing routes and digestion or injected intentionally enough easier than most particles. If they can’t be broken down and digested or degraded, there is a danger they will gather up and damage organs. Secondly, we don’t know exactly how nanotechnology co-operates with biological systems. They could learn to reproduce themselves and act in the same way as viruses and bacteria. Thirdly, there is a risk of neuronal translocation. This nanoparticles if intersect with the brain can cause translocation of inhaled particulates to the brain.