A multidisciplinary area of medicine known as "tropical medicine" deals with illnesses that are more common, more unusual, or more challenging to treat in tropical and subtropical areas. A wide range of illnesses and disorders are diagnosed and treated by doctors in this profession. The tropics are home to the majority of the illnesses they treat. Among the most well-known are TB, HIV/AIDS, and malaria. They must be educated of the 18 neglected tropical illnesses that are less well-known and include rabies, dengue, and Chagas disease. Non-communicable illnesses are becoming more prevalent as a result of the poor living circumstances in tropical developing nations. These illnesses include cardiovascular disease and cancer, which were formerly more of a concern in industrialised nations.