Skip navigation

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Results 1 - 1 of 1 for Congenital lactase deficiency
  1. ... lactase has both genetic and non-genetic causes.Congenital lactase deficiency, also called congenital alactasia, is a disorder in ... break down much of the lactose in milk. Congenital lactase deficiency is a rare disorder, though its exact incidence ...