How Long Does It Take a Stomach Ulcer to Heal?

A stomach ulcer, also known as a peptic ulcer, is an open sore that develops on the lining of the stomach or the first part of the small intestine, called the duodenum. This damage occurs when the protective mucous layer is worn away, allowing digestive acids to erode the underlying tissue. The healing timeline for these sores is not uniform and depends heavily on the underlying cause and the consistency of treatment. While the pain associated with an ulcer might subside relatively quickly, true mucosal repair takes a more specific period of time.

Standard Healing Duration Under Treatment

The expected duration for an ulcer to heal is closely tied to its cause, which is typically either infection by the bacterium Helicobacter pylori (H. pylori) or the prolonged use of nonsteroidal anti-inflammatory drugs (NSAIDs). For ulcers caused by H. pylori, the initial treatment involves a short course of combination therapy, often a proton pump inhibitor (PPI) along with two or three antibiotics, taken for 10 to 14 days. This regimen aims to eradicate the bacteria, and once the infection is cleared, the ulcer usually heals completely within four to eight weeks.

NSAID-induced ulcers require the immediate cessation of the offending drug, if possible, coupled with acid suppression therapy using a PPI. Duodenal ulcers often show complete healing within four weeks, while gastric (stomach) ulcers may require a longer treatment period of six to eight weeks. The primary goal of the acid-suppressing medication is to significantly lower the acid levels in the stomach, creating an environment where the damaged tissue can begin to regenerate naturally. This timeline reflects the period needed for initial tissue repair.

Factors That Accelerate or Delay Recovery

The severity and characteristics of the ulcer itself are major determinants of the healing timeline. Larger or deeper ulcers demand more time for tissue regeneration. Ulcers greater than five millimeters may take eight to twelve weeks or longer to fully close, sometimes being classified as refractory if they do not heal after the standard course of treatment. Continued habits such as smoking significantly impair the recovery process by reducing blood flow to the stomach lining, which starves the healing tissue of necessary oxygen and nutrients.

Factors Delaying Recovery

Poor adherence to the prescribed medication regimen, particularly skipping doses of antibiotics or PPIs, is a common reason for delayed healing or recurrence. Failing to complete the full course of antibiotics can lead to incomplete H. pylori eradication and antibiotic resistance. Continued consumption of alcohol or the resumption of NSAID use can persistently irritate the stomach lining, actively working against the healing effects of the medication. Underlying health conditions like diabetes, which affect the body’s overall ability to heal, may also contribute to a slower recovery.

Accelerating Recovery

Acceleration of recovery depends on the patient’s strict commitment to the treatment plan, including taking all medications exactly as directed. Avoiding known irritants, such as ceasing smoking and discontinuing NSAIDs, creates an optimal physiological environment for the gastric tissue to mend. While specific dietary changes are less impactful than medication, avoiding highly acidic or spicy foods that may increase discomfort can support symptom relief during the healing phase.

Recognizing Signs of Healing and When to Seek Re-evaluation

The most common initial sign that an ulcer is healing is the noticeable reduction or complete disappearance of pain and discomfort. Patients often report less gnawing or burning sensation and a decrease in pain that typically worsens between meals or at night. However, the absence of symptoms does not automatically confirm that the ulcer is fully healed, and stopping medication prematurely can lead to a relapse.

For ulcers caused by H. pylori, a follow-up test, such as a urea breath test or stool antigen test, is mandatory to confirm that the bacteria have been successfully eradicated. This testing is typically performed at least four weeks after completing the antibiotic course to ensure accuracy. For large ulcers or any ulcer located in the stomach, a repeat endoscopy may be recommended four to six weeks after treatment to visually confirm complete healing and rule out other conditions.

Immediate medical attention is necessary if symptoms worsen or if new, severe signs appear, indicating a potential complication like bleeding or perforation. These warning signs include:

  • Sudden, sharp, and severe abdominal pain.
  • Vomiting blood or material resembling coffee grounds.
  • Passing black, tarry stools.
  • Persistent symptoms despite treatment, which may indicate a refractory ulcer or an incorrect initial diagnosis.