Description

Peptic Ulcer Disease (PUD) is a digestive condition in which open sores, known as peptic ulcers, develop in the lining of the stomach or the first part of the small intestine, called the duodenum. These ulcers occur when the protective lining of the digestive tract becomes damaged and stomach acid and digestive enzymes begin to irritate the underlying tissue.

Peptic ulcer disease can affect people of different ages. The two main types are gastric ulcers, which develop in the stomach, and duodenal ulcers, which develop in the duodenum. Although ulcers can sometimes heal on their own, untreated peptic ulcers may become deeper and lead to complications such as bleeding, perforation, or blockage of the digestive tract.

One of the most important causes of peptic ulcer disease is infection with a bacterium called Helicobacter pylori (H. pylori). This bacterium can live in the stomach and damage the protective mucus layer, making the stomach lining more vulnerable to acid.

Another major cause is the regular use of certain pain-relieving medicines known as nonsteroidal anti-inflammatory drugs (NSAIDs). Examples include ibuprofen, naproxen, and aspirin. These medicines can reduce substances that normally protect the stomach lining.

Common symptoms of peptic ulcers include burning or aching pain in the upper abdomen, indigestion, bloating, nausea, and feeling full quickly. Some people may have an ulcer without noticeable symptoms until a complication develops.

The diagnosis of peptic ulcer disease may involve testing for H. pylori, blood tests, stool tests, breath tests, or an upper gastrointestinal endoscopy. Endoscopy allows a doctor to directly examine the stomach and duodenum.

Treatment depends on the underlying cause. H. pylori infection is generally treated with a combination of antibiotics and acid-reducing medicines. Ulcers related to NSAIDs may require stopping or changing the medicine under medical supervision and using acid-suppressing treatment.

Lifestyle changes can support recovery, although diet alone does not cure an ulcer. Avoiding smoking, limiting alcohol, using pain medicines carefully, and following the prescribed treatment plan can help reduce complications.

Causes

Peptic ulcer disease can develop when the protective defenses of the stomach or duodenum are weakened and digestive acid damages the lining.

One of the leading causes is H. pylori infection. H. pylori can live in the stomach lining and contribute to inflammation and damage to the protective mucus barrier.

H. pylori infection is common worldwide and can remain in the stomach for years without causing obvious symptoms.

The second major cause is long-term or frequent use of NSAID painkillers. These include medicines such as ibuprofen, naproxen, and aspirin.

NSAIDs can interfere with substances called prostaglandins that help protect the stomach lining and maintain normal blood flow to digestive tissues.

The risk of ulcers related to NSAIDs may be higher in older adults, people who take high doses, people who use these medicines for long periods, and those with a previous history of ulcers.

Taking multiple NSAIDs or combining certain medicines can further increase the risk of gastrointestinal bleeding.

Smoking can increase the risk of peptic ulcers and may interfere with healing.

Alcohol can irritate the digestive lining and may worsen symptoms, particularly when consumed heavily.

Severe physical stress, such as serious illness, major surgery, or significant injury, can contribute to certain types of stomach ulcers.

Some people have an increased tendency to develop ulcers because of other medical conditions or medications.

Spicy foods do not usually cause peptic ulcers, although they may worsen symptoms in some individuals.

Stress and anxiety are not considered the main causes of most peptic ulcers, but severe stress can affect digestive symptoms and may make existing discomfort feel worse.

Untreated H. pylori infection and continued use of ulcer-causing medicines can prevent an ulcer from healing.

Symptoms

The most common symptom of peptic ulcer disease is burning, aching, or gnawing pain in the upper abdomen. The pain may occur between the breastbone and belly button and can vary in intensity.

For some people, ulcer pain may occur when the stomach is empty. In others, eating may temporarily improve or worsen the discomfort.

Pain may come and go over several days or weeks. Some people notice that symptoms are worse at night.

Indigestion or discomfort after eating can occur. A person may feel unusually full or uncomfortable even after eating a small amount.

Bloating is another possible symptom. The abdomen may feel swollen or tight after meals.

Nausea can occur, and some people may vomit.

Loss of appetite may develop because eating is associated with discomfort.

Unintentional weight loss can occur when symptoms become severe or when a person begins avoiding food because of pain.

Some people experience frequent burping or a feeling of excessive gas.

Not everyone with peptic ulcer disease experiences symptoms. An ulcer may sometimes be discovered only after a complication such as bleeding occurs.

Vomiting blood is an emergency warning sign. The vomit may contain bright red blood or look dark and grainy, sometimes described as resembling coffee grounds.

Black, sticky, or tar-like stools can indicate bleeding in the upper digestive tract.

Sudden and severe abdominal pain may indicate that an ulcer has created a hole in the stomach or intestine, a condition called perforation.

Severe weakness, dizziness, fainting, rapid heartbeat, or pale skin may occur with significant internal bleeding.

Persistent vomiting can sometimes indicate blockage caused by swelling or scarring around an ulcer.

Anyone experiencing vomiting blood, black stools, sudden severe abdominal pain, fainting, or signs of significant blood loss should seek emergency medical attention.

Prevention

Some cases of peptic ulcer disease can be prevented by reducing the factors that damage the stomach and by treating H. pylori when it is identified.

Using NSAID painkillers carefully is important. People who regularly need these medicines should discuss their risks with a healthcare professional, particularly if they have a history of ulcers.

Do not take more than the recommended dose of over-the-counter pain medicines.

Avoid combining different NSAIDs unless specifically advised by a healthcare professional.

People taking low-dose aspirin for a medical reason should not stop it without professional guidance, even if they are concerned about stomach problems.

Avoiding smoking can reduce ulcer risk and support healing.

Limiting alcohol can help reduce irritation of the stomach lining.

People with persistent upper abdominal pain, recurring indigestion, or other ulcer symptoms should seek medical evaluation rather than relying on home remedies.

If H. pylori infection is diagnosed, completing the full treatment course is essential.

Testing to confirm that H. pylori has been eliminated may be recommended after treatment.

Maintaining a healthy eating pattern can support digestive health. There is generally no need to follow an extremely restrictive diet unless specific foods clearly trigger symptoms.

Managing stress through healthy activities such as regular exercise, adequate sleep, relaxation techniques, and social support may improve digestive comfort, although stress management does not replace medical treatment.

People with a previous history of peptic ulcers should inform healthcare professionals before starting medicines that may increase the risk of stomach bleeding.

Seek urgent medical attention for vomiting blood, black or bloody stools, sudden severe abdominal pain, fainting, or severe weakness.

Peptic ulcer disease is a common but treatable digestive condition. The two major causes—H. pylori infection and NSAID use—can often be identified and managed effectively. Early diagnosis and appropriate treatment can help ulcers heal and prevent serious complications.

With proper medical care, most people recover successfully. Following prescribed treatment, avoiding unnecessary stomach-irritating medicines, stopping smoking, limiting alcohol, and seeking medical attention for warning signs are important steps for protecting digestive health.

Medical Information Trust
Evidence-Based Information
Last Updated: October 28, 2026
YMYL Compliant

Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider. In an emergency, call emergency services immediately.