Carrion disease, also known as Visceral Leishmaniasis, is an infectious disease caused by the protozoan parasite Leishmania. This debilitating illness primarily affects the internal organs, causing severe symptoms such as high fever, an enlarged spleen and liver, weight loss, and anemia. Though commonly referred to as Carrion disease, it is essential to remember its alternative names to ensure accurate understanding. Synonyms for Carrion disease include Kala-azar, Black fever, and Dum-dum fever. These terms highlight different aspects of the illness and its impact on the human body. Recognizing these synonyms is crucial for effective communication and disseminating information regarding this significant public health concern.