14240 Celiac Disease

Overview

Celiac disease is an autoimmune condition where your body's immune system reacts to gluten — a protein found in wheat, barley, and rye. In people with celiac disease, eating gluten damages the lining of the small intestine, making it hard for your body to absorb nutrients from food. It is not a food allergy or an intolerance; it is a serious condition that requires lifelong management.

Yes, celiac disease is fairly common. It is estimated to affect about 1 in 100 people, though many may not know they have it.

Celiac disease can affect anyone, at any age. It is more common in people with a family history of the condition, type 1 diabetes, autoimmune thyroid disease, Down syndrome, or Turner syndrome.

Symptoms

Common symptoms

• Persistent diarrhoea
• Abdominal pain and bloating
• Unexplained weight loss
• Fatigue or feeling tired all the time
• Nausea and vomiting
• Anaemia (low iron levels) that doesn't improve with iron supplements
• An itchy skin rash with blisters (dermatitis herpetiformis)

Symptoms in children

• Poor growth and slow weight gain
• Persistent diarrhoea or constipation
• Irritability and mood changes
• Vomiting and bloating
• Delayed puberty or short stature

Symptoms in older adults

• Often fewer digestive symptoms, but may experience fatigue, unexplained anaemia, bone loss (osteoporosis), muscle cramps, or tingling in the hands and feet.

Causes

Main causes

• Celiac disease is caused by an abnormal immune response to gluten in people who are genetically predisposed.
• Eating gluten triggers the immune system to attack the small intestine, damaging the villi (tiny finger-like projections that absorb nutrients).
• The exact trigger for this immune response is not fully understood.

Risk factors

• Family history of celiac disease
• Having type 1 diabetes, autoimmune thyroid disease, or other autoimmune conditions
• Having Down syndrome or Turner syndrome
• Carrying specific genes (HLA-DQ2 or HLA-DQ8)

When to see a doctor

See a doctor urgently if:

• If you develop sudden, severe abdominal pain, signs of dehydration, or are vomiting blood, seek urgent medical help — call your local emergency number.

Book a routine appointment if:

• Make an appointment with your GP if you have persistent digestive problems, fatigue, unexplained anaemia, an itchy skin rash, or weight loss that is not intentional.

Diagnosis

Doctors usually start with a blood test to look for certain antibodies. If the blood test suggests celiac disease, they will usually refer you to a specialist for a small bowel biopsy — a small sample taken from the lining of your intestine during an endoscopy.

Tests that may be done

• Blood test for antibodies (tTG-IgA)
• Upper endoscopy with small intestine biopsy
• Genetic testing (HLA-DQ2/DQ8) in certain cases

What to expect at your appointment

You may need to continue eating gluten before testing to avoid false results. Your doctor will explain the process and any preparation needed. The tests are generally quick and well tolerated.

Treatment

The main treatment for celiac disease is a strict, lifelong gluten-free diet. Removing gluten from your diet lets the small intestine heal and symptoms improve. There is no cure, but the condition can be managed very effectively.

Self-care at home

• Work with a dietitian to learn which foods are safe
• Read food labels carefully — gluten can hide in many processed foods
• Avoid cross-contamination in your kitchen — use separate toasters, cutting boards, and utensils
• Be cautious when eating out, and ask about food preparation
• Choose naturally gluten-free grains like rice, corn, quinoa, and certified gluten-free oats

Medical treatments

There are no medications approved to treat celiac disease itself. However, your doctor may recommend supplements to correct vitamin or mineral deficiencies, such as iron, calcium, or vitamin D. Always talk to your healthcare provider before taking any supplements.

When is surgery considered?

Surgery is not used to treat celiac disease itself. In rare cases where complications such as intestinal lymphoma develop, surgery may be part of cancer treatment — but this is uncommon.

Living with this condition

Living with celiac disease means paying close attention to everything you eat. It can feel overwhelming at first, but with practice, a gluten-free lifestyle becomes second nature. Many people feel much better within weeks of going gluten-free.

Lifestyle tips

• Plan meals ahead to make gluten-free eating easier
• Join a support group to share tips and experiences
• Keep emergency gluten-free snacks in your bag or car
• Educate friends and family so they can support you

Diet and exercise

A well-balanced gluten-free diet is important for overall health. Focus on naturally gluten-free whole foods like fruits, vegetables, lean meats, fish, eggs, and gluten-free grains. Regular exercise is safe and encouraged. A dietitian can help you meet your nutritional needs.

Mental health and emotional wellbeing

Celiac disease can be emotionally challenging. Managing a chronic condition, eating out, and explaining it to others may cause anxiety or stress. It's normal to feel frustrated sometimes. If you're struggling, talk to your GP or a mental health professional. If you are in crisis, contact your local crisis support line or emergency number.

Prevention

There is currently no way to prevent celiac disease. It is not caused by anything you did or didn't do.

Vaccines

There is no vaccine for celiac disease.

Screening programmes

Routine screening for the general population is not recommended. However, if you have a first-degree relative with celiac disease, your GP may offer testing if you develop symptoms or as part of your ongoing care.

Complications

If left untreated

• Long-term damage to the small intestine can lead to nutrient deficiencies, including iron-deficiency anaemia and osteoporosis.
• Untreated celiac disease is linked to an increased risk of certain types of lymphoma (a rare cancer of the lymphatic system).
• In women, untreated celiac disease may cause pregnancy complications or infertility.

Long-term outlook

With proper diagnosis and a strict gluten-free diet, most people with celiac disease recover fully and lead healthy, active lives. The intestine heals over time, and symptoms usually improve within weeks to months. Living gluten-free is challenging but very manageable with support.

Find support

External links open third-party websites. Ruqelo Health is not responsible for external content. Listing an organisation does not imply endorsement.