Nanorobots are microscopic machines designed to perform tasks at the nanoscale, typically within the human body. These tiny devices have the potential to revolutionize medicine by delivering drugs precisely to diseased cells, performing microsurgeries, and even detecting diseases at an early stage. In cancer treatment, nanorobots can target tumors with high precision, reducing the side effects of chemotherapy. With advancements in nanotechnology, these intelligent systems could transform healthcare, making treatments more efficient and personalized.