Gastroesophageal Reflux Disease

Overview

Gastroesophageal reflux disease (GERD) is what doctors call it when stomach acid keeps flowing back up into your food pipe (the esophagus). A ring of muscle at the bottom of the food pipe normally acts like a one-way valve, closing after food goes down. When that valve is weak or opens at the wrong time, acid can splash upward and cause the burning feeling people call heartburn. Many people get occasional heartburn. When it happens often — roughly twice a week or more — or starts to damage the food pipe, it is called GERD.

Yes. Acid reflux is one of the most common digestive complaints. Many adults have heartburn now and then, and a sizable number have symptoms often enough to be diagnosed with GERD. It is a regular reason people visit their family doctor or pharmacist.

GERD can affect anyone, including children and babies. It is more common in adults who are overweight, in pregnant women, in smokers, and in people over 40. Babies often bring up milk after feeds, but most grow out of it.

Symptoms

Common symptoms

• A burning feeling in the chest (heartburn), often after meals or when bending over or lying down
• A sour or bitter taste in the mouth, or bringing up small amounts of food or liquid
• A feeling of fullness or discomfort behind the breastbone
• A hoarse voice, sore throat, or a tickly cough that keeps coming back
• A feeling of a lump in the throat or needing to clear your throat often
• Bad breath or tooth enamel wear in some people
• Symptoms that get worse at night or after large, fatty, or spicy meals

Symptoms in children

• Frequent spitting up or vomiting, especially after feeds
• Crying or arching the back during or after feeds
• Refusing feeds or feeding poorly, sometimes with poor weight gain
• A persistent cough, wheeze, or hoarse cry
• Older children may describe a burning chest pain or a sour taste
• Many babies bring up milk without any harm and grow out of it — ask your health visitor or doctor if you are worried

Symptoms in older adults

• Symptoms can be milder or less typical than in younger adults
• More cough, hoarseness, or throat clearing and less obvious heartburn
• Trouble swallowing or food feeling stuck deserves prompt checking
• Chest pain in an older adult should always be taken seriously and checked, because heart problems can feel similar

Causes

Main causes

• A weak or relaxed valve (the lower esophageal sphincter) between the food pipe and stomach, so acid escapes upward
• A hiatal hernia, where part of the stomach pushes up through the diaphragm, which can weaken that valve
• Extra pressure on the stomach from being overweight or pregnant
• The stomach emptying more slowly than usual, so it stays full and under pressure
• Certain foods, drinks, and habits that relax the valve or increase acid — such as large fatty meals, alcohol, caffeine, chocolate, and lying down soon after eating

Risk factors

• Being overweight or gaining weight around the middle
• Pregnancy
• Smoking or vaping
• Eating large meals late at night
• Drinking a lot of alcohol or caffeine
• Wearing tight clothing or belts that press on the belly
• Some medicines, including certain pain relievers, asthma medicines, and blood pressure medicines — ask your pharmacist about your own medicines
• A family history of reflux, and getting older

When to see a doctor

See a doctor urgently if:

• Trouble swallowing or food feeling stuck
• Vomiting blood or passing black, tarry stools
• Losing weight without trying
• Chest pain, especially with breathlessness, sweating, or pain spreading to the arm or jaw — call emergency services first
• Severe or worsening symptoms that are not settling

Book a routine appointment if:

• Heartburn or reflux symptoms more than twice a week
• Symptoms that wake you at night or interfere with work, eating, or sleep
• Symptoms that keep coming back after you stop treatment
• A hoarse voice, chronic cough, or sore throat that will not settle
• You have had reflux for years and your symptoms are changing — this is worth a review

Diagnosis

Your doctor will usually start by talking with you about your symptoms — when they happen, what makes them better or worse, and what medicines you take. Often that is enough to make a likely diagnosis, and a short trial of treatment and lifestyle changes can confirm it. If your symptoms are typical and settle well, you may not need any tests at all. Tests are more likely if you have warning signs such as trouble swallowing, weight loss, vomiting, or if treatment is not working.

Tests that may be done

• A trial of acid-reducing treatment to see whether symptoms improve
• Endoscopy: a thin flexible tube with a camera checks the food pipe and stomach; you are usually sedated and it takes only a few minutes
• A 24-hour acid test (pH monitoring): a small sensor measures how much acid comes back up over a day
• Manometry: a test that measures how well the food pipe muscles squeeze and how the valve works
• A barium swallow: you drink a chalky liquid and X-rays show how it moves down
• Blood tests to check for anemia if bleeding is a concern

What to expect at your appointment

Most of the time, diagnosis is a conversation and a treatment trial rather than a big procedure. If you do need an endoscopy, you will be given instructions to prepare, and someone should come with you if you are sedated. Results are usually discussed with you quickly, and your doctor will explain what was found in plain terms and what happens next.

Treatment

Treatment aims to reduce how often acid flows back up, soothe the food pipe, and prevent damage. Most people do well with a combination of daily habits and medicine. Treatment is usually stepped up or down depending on how you respond, and your doctor will review it regularly so you are on the lowest effective option.

Self-care at home

• Eat smaller meals and stop before you feel very full
• Leave about three hours between your last meal and lying down
• Raise the head of your bed slightly, or use a wedge pillow, so gravity helps keep acid down
• Notice your trigger foods and cut back — common ones are fatty and fried foods, chocolate, mint, spicy food, citrus, tomatoes, coffee, and fizzy drinks
• Cut down on alcohol and caffeine, and stop smoking if you smoke
• Lose weight if you are carrying extra weight, even a small amount can help
• Loosen tight belts and waistbands
• Chew sugar-free gum after meals — it increases saliva, which helps clear acid
• Keep a simple symptom diary to spot patterns

Medical treatments

Your pharmacist or doctor can suggest medicines that either neutralise stomach acid or reduce how much acid your stomach makes. Some are available over the counter for short-term use; stronger versions need a prescription. There are also medicines that help the stomach empty more quickly, and others that form a protective barrier over the food pipe. Treatment is usually taken for a set period and then reviewed, and some people need it long term. Always check with a pharmacist before starting anything, especially if you take other medicines, are pregnant, or have other health conditions.

When is surgery considered?

Surgery or a procedure is only considered for a small number of people — for example, when symptoms stay troublesome despite good treatment, when long-term medicine is not suitable, or when there is a large hiatal hernia. The most common operation tightens the valve at the bottom of the food pipe. There are also endoscopic procedures done through the mouth. Your specialist team would discuss the benefits and risks with you in detail before deciding.

Living with this condition

Most people with GERD live full, normal lives. The key is finding your own pattern: which meals, drinks, and times of day cause trouble, and what keeps symptoms quiet. Small, steady changes tend to work better than strict rules you cannot keep up. Plan ahead for meals out, travel, and late nights, and keep any recommended medicine with you.

Lifestyle tips

• Keep a healthy weight and stay active most days
• Eat at regular times and avoid very large or very late meals
• Limit alcohol and caffeine, and stop smoking — ask for help, as it makes a real difference
• Raise the head of your bed and avoid lying flat soon after eating
• Wear comfortable, looser clothing around the waist
• Manage stress where you can — stress does not cause reflux but can make it feel worse
• Review your medicines with a pharmacist, as some can worsen reflux

Diet and exercise

There is no single reflux diet that suits everyone. A balanced way of eating with plenty of vegetables, fruit, whole grains, and lean protein suits most people, and smaller portions help. Try keeping a food diary for a couple of weeks to spot your own triggers rather than cutting out lots of foods at once. Gentle to moderate exercise such as walking, swimming, or cycling is helpful, especially alongside weight loss. Avoid vigorous exercise or bending sharply straight after a meal, and wait a couple of hours after eating before lying down or doing floor-based exercise.

Mental health and emotional wellbeing

Long-running symptoms can wear you down. Broken sleep, worrying about eating out, and the discomfort itself can affect mood, work, and relationships. That is understandable and worth mentioning to your doctor — reflux and stress affect each other, and good sleep and support help both. If low mood or anxiety is building, tell your doctor. If you ever feel overwhelmed or have thoughts of harming yourself, contact your local emergency number or a crisis support service straight away — you deserve help and you are not alone.

Prevention

You cannot always prevent GERD, especially where family history or a hiatal hernia is involved. But you can lower your chances and reduce flare-ups a lot by keeping to a healthy weight, not smoking, eating smaller meals, avoiding late-night eating, and limiting alcohol and caffeine. If you already have reflux, these same steps help keep it under control.

Screening programmes

There is no routine screening test for GERD in the general population. Screening for changes in the food pipe (such as Barrett's esophagus) may be offered to some people with long-standing reflux plus other risk factors — your doctor will advise if this applies to you.

Complications

If left untreated

• Inflammation of the food pipe (esophagitis), which can be sore and cause bleeding
• Narrowing of the food pipe (stricture), which can make swallowing difficult
• Barrett's esophagus: a change in the lining of the food pipe that is more common with long-standing reflux and needs monitoring
• Ulcers or bleeding in the food pipe, leading to anemia
• Dental problems from repeated acid in the mouth
• Poor sleep, coughing at night, and reduced quality of life

Long-term outlook

The outlook is good for most people. With sensible lifestyle changes and, where needed, treatment, symptoms usually come under control and complications are uncommon. Serious problems are more likely when reflux has gone untreated for many years, which is one good reason to get ongoing symptoms checked rather than putting up with them. If you have long-standing reflux, regular review with your doctor helps keep things on track.

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