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What is Congenital lactase deficiency?

What is Congenital lactase deficiency?

  • Congenital lactase deficiency: A congenital metabolic disorder where a deficiency of an enzyme called lactase impairs the body's ability to digest milk and other products that contain lactose. Symptoms tend to occur soon after consuming such products. The severity of symptoms depends on the degree of lactase deficiency.

Ophanet, a consortium of European partners, currently defines a condition rare when it affects 1 person per 2,000. They list Congenital lactase deficiency as a "rare disease".
Source - Orphanet

Congenital lactase deficiency: Introduction

Types of Congenital lactase deficiency:

Broader types of Congenital lactase deficiency:

Who gets Congenital lactase deficiency?

Racial predominance for Congenital lactase deficiency: Finland

How serious is Congenital lactase deficiency?

Prognosis of Congenital lactase deficiency: Symptoms improve rapidly once lactose is eliminated from the diet.
Complications of Congenital lactase deficiency: see complications of Congenital lactase deficiency

What causes Congenital lactase deficiency?

Causes of Congenital lactase deficiency: see causes of Congenital lactase deficiency
Cause of Congenital lactase deficiency: The condition results from a genetic defect inherited in an autosomal recessive manner.

What are the symptoms of Congenital lactase deficiency?

Symptoms of Congenital lactase deficiency: see symptoms of Congenital lactase deficiency

Complications of Congenital lactase deficiency: see complications of Congenital lactase deficiency

Onset of Congenital lactase deficiency: Symptoms start from the first day of life if milk feeds contain lactose. Symptoms tend to occur after eating a meal containing milk or its products.

Can anyone else get Congenital lactase deficiency?

Inheritance: see inheritance of Congenital lactase deficiency

Congenital lactase deficiency: Testing

Diagnostic testing: see tests for Congenital lactase deficiency.

Misdiagnosis: see misdiagnosis and Congenital lactase deficiency.

How is it treated?

Treatments for Congenital lactase deficiency: see treatments for Congenital lactase deficiency

Name and Aliases of Congenital lactase deficiency

Main name of condition: Congenital lactase deficiency

Other names or spellings for Congenital lactase deficiency:

Alactasia, Hereditary, Lactase Deficiency, Congenital, Disaccharide Intolerance II

 

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