Beside its basic Message (modesty and faith to the Only One God) islam is a style of life and a way of consideration to everything in our environment: nature, people, animals, things, family, neighbours etc. Islam has a specific attitude concerning science and education, health, nutrition, work, defense of country, including the most refined dimensions of practical life. Islam considers specially hygiene and health in general (from the proclaimed tenets on personal hygiene keeping protection of our environment). There are numerous rules, concerning hygiene, in islam; and each of them has its practical purpose. In this paper, the author discusses certain specific topics concerning hygiene in islam (islamic hygiene); causal relations the patient-hygiene-ill; hygiene in nutrition (relating closely to healthful life, and ill prevention); and, finally, gives notes about islamic activities in the respect of human health. The author represents these activities through their practical aspect that concerns prevention of ills and good health.