H. pylori bacterial infection
- Damage to the stomach lining
- Autoimmune conditions
- Other causes
- Risk factors
- Possible complications
- When to see a doctor
- Lifestyle and dietary changes
Gastritis is when the lining of the stomach becomes inflamed or swollen. This usually happens after the stomach lining has been damaged. Gastritis that is long-lasting or recurring is known as chronic gastritis.
Chronic gastritis is one of the most common chronic conditions and can last for years or even a lifetime if left untreated. A wide range of different conditions and factors are known to cause or contribute to the development of chronic gastritis.
Resolving mild cases of gastritis can often be through the use of medication and lifestyle changes. However, for some people with severe chronic gastritis, a cure may not be possible, and the focus of treatment will be on managing the symptoms.
In this article, we look at the symptoms, causes, risk factors, and possible complications of chronic gastritis. We also cover when to see a doctor, diagnosis, treatment, and lifestyle and dietary changes.
Indigestion, nausea, bloating, and a burning feeling in the stomach can be symptoms of chronic gastritis.
People with minor cases of gastritis that are caused by the bacterium Helicobacter pylori may not always notice any symptoms.
However, most people with chronic gastritis experience a variety of symptoms, including:
a burning or gnawing feeling in the stomach
the sensation of being full after eating a small amount
nausea and vomiting
unintentional weight loss
loss of appetite
upper abdominal pain or discomfort
bleeding, usually only in erosive gastritis
Gastritis is termed “erosive” if the stomach lining has been worn away, exposing the tissue to stomach acids.
Chronic gastritis refers to a group of conditions that cause chronic inflammation of the mucosal lining of the stomach.
There are many different causes of chronic gastritis, but most cases are related to one of the following:
H. pylori bacterial infection
H. pylori bacterial infection is the most common cause of gastritis worldwide. Many people first become infected during childhood, but not everyone experiences symptoms.
While H. pylori infection can cause both acute and chronic gastritis, it is not often associated with erosive gastritis.
Researchers think H. pylori spreads through infected food, water, salvia and other bodily fluids.
Damage to the stomach lining
Damage to the stomach lining can lead to chronic inflammation. Causes of this include:
overuse or long-term use of non-steroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen and naproxen
excessive alcohol consumption
injuries and impact
exposure to radiation
recurring bile reflux from the small intestine
In people with autoimmune gastritis, their immune system attacks the stomach lining for no apparent reason. Autoimmune gastritis is usually chronic but non-erosive.
In some people, autoimmune gastritis may be linked to chronic or severe H. pylori infection.
Less common causes of chronic gastritis include:
irritable bowel syndrome
other types of fungal, bacterial, or viral infections
Risk factors for chronic gastritis include diets high in fat, oil, salt, and preservatives.
Possible risk factors for chronic gastritis include:
diets high in salt or preservatives
diets high in fat and oil, especially saturated and trans fats
long-term consumption of alcohol
conditions that weaken the immune system
long-term use of NSAIDs and some other medications
long-term use of medications for acid reflux and indigestion
If properly treated, acute cases of gastritis are rarely associated with complications. However, people may experience serious health complications if they have severe or untreated chronic gastritis.
Erosive gastritis can cause peptic ulcers. Once an ulcer has formed, they can progressively degrade the surrounding tissues, widening and enlarging themselves. Severe ulcers may eventually cause internal bleeding, which can be life-threatening if left untreated.
Other possible complications of chronic gastritis include:
anemia caused by iron deficiency
anemia caused by internal bleeding
vitamin B-12 deficiency
abnormal stomach growths, such as polyps and tumors
When to see a doctor
People with symptoms of gastritis should see a doctor if the symptoms:
last for more than a week
do not respond to treatment or lifestyle adjustments
Internal bleeding requires immediate medical attention. Signs of internal bleeding can include:
black, tarry stools
red, fresh-looking blood in the stool
red blood in vomit or vomiting blood
difficulty breathing or swallowing
What is acid reflux?
Acid reflux is a common condition that features a burning pain or heartburn in the lower chest area. Learn about what causes it and how to treat it here.
Doctors use a wide range of tests and tools to diagnose chronic gastritis, including:
stool tests to check for both H. pylori and signs of bleeding
endoscopy when a camera on a tube is put down the throat into the stomach
urea breath test to check for H. pylori infections
Treatment depends on the type, cause, and severity of gastritis.
Gastritis caused by H. pylori infections is usually treated with a combination of antacids and antibiotics, even if the infection is not causing any symptoms.
People will often need to take supplements or make dietary adjustments to prevent complications if their chronic gastritis is causing nutritional deficiencies.
Most gastritis medications focus on reducing the amount of acid in the stomach.
Common acid-reducing medications include:
Antacids. Antacids typically contain magnesium, calcium, sodium, or aluminum salts that can help neutralize stomach acids. Antacids can sometimes cause constipation or diarrhea and other side effects.
Proton-pump inhibitors (PPIs). These reduce the amount of acid the stomach produces. People can buy low-strength versions of lansoprazole and omeprazole over the counter, but most PPIs are only available on prescription.
H2 blockers. H2 blockers are antihistamines that can help reduce stomach acid production. Most types of H2 blockers are available in both over-the-counter and prescription strengths.
Lifestyle and dietary changes
Gastritis may be prevented or treated by eating a diet rich in whole fruits and vegetables.
Regardless of the cause or severity of symptoms, making dietary and lifestyle adjustments may help treat gastritis or prevent it occurring.
Common dietary suggestions for people with chronic gastritis include:
avoiding or reducing alcohol consumption
avoiding spicy foods
avoiding rich, oily, or fried foods
avoiding acidic foods, especially citrus fruits and juices
eating smaller meals but more frequently
reducing salt consumption
eating less red meat
Eating a healthy, balanced diet rich in antioxidants, fiber, and probiotics may also help. You find these substances in foods such as:
whole fruits and vegetables
whole-grain breads, cereals, rice, and pasta
fermented products, including yogurt, kefir, sourdough bread, sauerkraut, and kimchi
lean proteins, including chicken, fish, beans, legumes, nuts, and seeds
Some people with chronic gastritis may also find benefit from eating foods with anti-bacterial properties, such as:
Common lifestyle changes recommended for people with chronic gastritis include:
avoiding or reducing the use of NSAIDs, sometimes by talking to a doctor about other medications
practicing good food and personal hygiene, including washing the hands frequently
drinking plenty of water to stay hydrated
managing stress and pain with relaxation techniques and practices, such as meditation, yoga, controlled breathing, and acupuncture
Chronic gastritis can cause pain and discomfort and lead to serious complications if left untreated. People should see their doctor if they have symptoms of chronic gastritis.
Management of chronic gastritis involves treating any underlying conditions, taking medications to counteract stomach acid, and making lifestyle and dietary changes.