A medical representative represents a pharmaceutical company and is responsible for building relationships between the company and customers like doctors, pharmacists, and patients in an assigned territory. They are knowledgeable about human anatomy, diseases, and treatments. As the main point of contact, they provide information about products, address any questions or needs, and work to increase availability and sales of the company's medicines. To succeed, medical representatives must have strong communication, negotiation, and management skills to perform their important role of educating healthcare professionals and the public.