Tropical medicine is the branch of medicine is dedicated to treatment, care and cure of tropical diseases, which are commonly occurring in developing countries due to lack of hygiene, knowledge etc. The most commonly occurring tropical diseases are Chagas disease, Dengue, Helminths, African trypanosomiasis, Leishmaniasis, Malaria, Sexually transmitted infections etc.
Hygiene refers to conditions and practices that help to maintain health and prevent the spread of diseases. Neglect of hygiene results in many diseases.