Celiac disease is a genetic disease and is generally known as the inability of the small intestine to absorb the nutrients from food duet o damage caused by gluten laden products that destroy the lining of the small intestine.  Glutens can literally be found anywhere such as flour, barley, wheats, and oats, and it is also found in some medicines, cosmetics, and even vitamins.

If you eat a gluten free diet, you can cause the symptoms and problems to disappear without medicine or otherwise.  The problem is eating that gluten free diet for many.  However, if you do eat glutens with this particular disease, you will suffer from other problems and essentially it leads to malnutrition, stomach pain, stunted growth, dermatitis, mouth sores, stomach pain, swollen stomach, intermittent vomiting, diarrhea, pale and foul smelling stool, weight loss, and other manifestations of this severe type of allergy in some ways. 

Generally speaking, it is genetic and it can occur at any time or at any age.  Even infants could have it.  At first, it might not be noticeable with an infant.  But when you start introducing gluten based foods, they may start to experience vomiting, diarrhea, and fall below normal weight standards for their age while also suffering severe malnutrition.  They generally suffer epilepsy, anemia, hepatitis, and stunted growth.  Now if you supplement with a gluten free diet and these go away, obviously you’ve found your problem.  But should you forget, the results can vary.