Definition
Its cause is the lack or insufficiency in the secretion of disaccharidases at the enteral level.
The deficit of disaccharidase may be:
The deficit of disaccharidase may be:
- congenital (the congenital lactase deficiency :the newborn does not tolerate the milk immediately after birth; congenital deficiency; maltase or trehalase).
- asquired during life-time; it may be transient or definitive (the most frequent is the lactase deficit, with the milk intolerance of the adult
