Overview

Celiac disease is a long-term autoimmune disorder in which eating gluten hurts the lining of the small intestine. Wheat, barley, and rye all contain a protein called gluten. When people with celiac disease eat gluten, their immune system attacks the intestinal villi, which are the parts of the intestines that absorb nutrients. Over time, this causes the body to fail to absorb essential nutrients and has other effects. People who are genetically prone to celiac disease can get it at any age. It is not an allergy, but an immune-mediated condition that needs to be managed through diet for the rest of your life. To avoid problems, it's important to identify the issue as soon as possible.

Symptoms
Symptoms can be very different and can include long-term diarrhea, stomach pain, bloating, and too much gas. People often feel tired, lose weight, and don't get enough nutrients. Some people develop anaemia, weak bones, or skin rashes. Celiac disease can cause delayed growth in kids and make them irritable. Some people have very few digestive problems but many nutrient deficiencies.

Causes
Celiac disease happens when the immune system reacts badly to gluten in people who are genetically prone to it. Certain genes make people more likely to get sick, but environmental factors also play a role. Eating gluten-containing foods causes intestinal inflammation. A family history raises the risk, and people who have it may also have other autoimmune diseases.

Diagnosis
Blood tests that detect specific antibodies associated with gluten sensitivity are part of the diagnostic process. Usually, confirmation is obtained by performing an upper gastrointestinal endoscopy and taking a small intestinal biopsy to assess the extent of villous damage. To ensure the test is correct, it should be performed while the patient is still eating gluten.

Treatment
A strict, lifelong gluten-free diet is the main treatment. This allows the intestinal lining to heal and the symptoms to improve. To fix deficiencies in vitamins, calcium, iron, or other nutrients, you may need to take supplements. Dietary counselling helps find gluten sources that aren't obvious. Regular follow-up helps keep symptoms under control and prevents problems from getting worse. If you stick to a gluten-free diet, the future looks bright for people with celiac disease. Most people feel much better, and their intestines heal. Long-term health and the prevention of complications depend on regular checkups and nutritional support.