The basis of urban hygiene was smooth supply of water and taking care of waste disposal beyond the city walls. Also favored maintaining hygiene sanitation (gdaniska) extended beyond the fundamental residential buildings castle with a trigger to running water, moats and rivers. In the urban area it happened, however, that toilets were placed in dried well, what with subcutaneous water movement led to the spread of diseases and epidemics. Also they formed baths in castles and bourgeois houses. Baths also have city hospitals, but infirmerie castle, which was essential for preventing the spread of infectious diseases. Medieval medicine has its roots reached the achievements of antiquity, referring often to the experience of Hippocrates, Galen or Aristotle. Medical science began to be structured with the formation of the first. half of the twelfth century. European universities (Bologna, Paris, Padua, Avignon, Orleans). The most popular were Montpellier, Paris and Padua. The vast literary heritage of medieval monastic and lay herbariów, based on the ancient tradition of herbal and local observations, proves that formed the basis of herbs in contemporary medical practice. Medieval Christianity led to homesteading so by their own sacred objects of nature, having so far its magical folk dimension.