Chronic Constipation Caused by Cow's Milk Protein Allergy: A Case Report

Abstract

We experienced a 31-month-old boy with serious constipation due to cow's milk protein allergy. The child presented with chronic constipation at the age of 3 months, and use of enema, laxative, and the Chinese herbal remedies Daikenchuto and Shokenchuto were unsuccessful. We subsequently suspected some surgical problems, but a barium enema showed no abnormality. With no improvement 5 months after the first consultation, analysis of the child's history indicated a possibility of milk allergy. Blood tests proved positive for specific IgE milk antibody and DLST. After the diagnosis of cow's milk protein allergy, the child was placed on a dairy restricted diet. Six days later, he passed a stool without an enema, and has been doing well for two years. We conclude that in cases with continued constipation where surgical lesions have been ruled out, dairy allergies should be considered.