The changes that take place during the development of the fruit of araza were studied from the anthesis to ripening. It was registered and analyzed the longitudinal and transverse diameters, fresh and dried weight, firmness, and anatomical, modifications. lt was found that 55 ± 5 days occurred between the anthesis into the commercial ripeness of the fruit of araza. Three stages of growth were identified: the first one, cellular division, the second one, maximum growth, during which the cellular expantion takes place, and a final state of stability of the growth. The fruit anatomical study showed the parenchyma as principal tissue. In the first two steps cells are small and well defined, while at the fruit senescence cells are big, irregular and with thin walls. Araza fruit presents stomes in the epicarp, but its density and shape indicate that would be unfuctionals. Fruit softness during maturity could resulted from the stand tissues in the mesocarp.