The authors report a retrospective study of 50 cases of infantile visceral Leishmaniasis (April 1994-April 1995), and 53 cases of sporadic cutaneous Leishmaniasis of north-Tunisia (August 1990-July 1994), diagnosed in parasitology laboratory of Rabta hospital. They insist on the recrudescence and the extension of the distribution geographical area of these two clinical forms of human leishmaniasis observed in Tunisia.