Most medical knowledge of the Romans derived from Greek medicine. Doctors in ancient Rome were not nearly as highly regarded as the doctors in Greece as the profession itself was considered a low social position and left primarily to non-citizens. Most famous doctors in Rome were Greek, including Galen (161 AD) who was employed by a Roman legion, and was famous for his groundbreaking surgery.
The Romans developed surgical instruments manufactured from bronze, iron and silver, including scalpels, lancets, curettes and tweezers. The primary contribution of Rome to the practice of medicine was in matters of public health. Rome had a modern and sanitary water supply. Public baths were provided, and there was even domestic sanitation and adequate disposal of sewage.