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PUD Medical Abbreviation: Peptic Ulcer Disease in Plain Words

Conditions and diagnosesDigestiveConditionReviewed 30 Oct 2026

The PUD medical abbreviation stands for peptic ulcer disease, a condition in which open sores form in the lining of the stomach or the first part of the small intestine, called the duodenum. The word peptic points to pepsin and stomach acid, the digestive juices that eat into the lining once its protection breaks down.

You will usually find PUD in a past medical history list, a problem list, a scope report or a discharge summary. Across nearly every chart the PUD medical abbreviation meaning stays fixed, which makes it easier to read than many shorthand terms. This page covers what the letters mean, how a line containing PUD reads, the common causes clinicians write next to it, and the abbreviations that travel with it, such as EGD and PPI.

At a glance

  • Stands for

    Peptic ulcer disease
  • Includes

    Gastric ulcers (stomach) and duodenal ulcers (upper small bowel)
  • Common causes noted

    H. pylori infection and NSAID pain relievers such as ibuprofen
  • Usual test

    EGD, a camera scope of the upper gut
  • Where you see it

    History lists, GI consult notes, scope reports, discharge papers
  • Do not confuse with

    GERD (acid reflux) and GIB (bleeding in the gut)

What the PUD medical abbreviation means

Peptic ulcer disease is an umbrella term. A sore in the stomach itself is a gastric ulcer, and a sore just past the stomach in the duodenum is a duodenal ulcer. Both fall under PUD, and a note may name the exact spot when a scope has shown it, for example duodenal ulcer, PUD or gastric ulcer at the antrum.

An ulcer is deeper than simple irritation. Mild redness or raw patches in the lining are usually charted as gastritis or erosions, while ulcer means the sore has gone through the top layer. People with PUD may describe a burning or gnawing ache high in the belly, bloating or nausea, though some have no pain until a complication appears.

Reading PUD in a history or problem list

Clinicians often pack several facts about an ulcer into one short line. Here is a typical example taken apart, with a quick gloss for each piece.

A sample PUD history line, word by word
Text in the notePlain meaning
PMHPast medical history
PUDPeptic ulcer disease
s/pStatus post, so the treatment came earlier
H. pylori eradicationTreatment that cleared a stomach bacterium linked to ulcers
on omeprazole 20 mg dailyCurrently taking an acid lowering medicine once a day

In a pre-op note: "Hx PUD, avoid NSAIDs post op." The surgeon is flagging a past ulcer so the team picks pain relief that is easier on the stomach. Read it as a picture of surgical shorthand, not a rule for any one person.

Causes and risk factors written next to PUD

Two causes come up again and again in charts. The first is Helicobacter pylori, a bacterium that can live in the stomach lining and weaken it. Notes may shorten it to H. pylori or HP and list a breath, stool or biopsy test result. The second is regular use of nonsteroidal anti-inflammatory drugs, written NSAIDs, such as ibuprofen, naproxen and ASA (aspirin).

Other factors clinicians record include smoking, heavy alcohol use, steroid use together with NSAIDs, and serious illness in intensive care, where so called stress ulcers can form. Spicy food and everyday stress were once blamed, but they are not considered the main causes today.

Complications that change how PUD is charted

Most ulcers heal with treatment, but a few lead to problems that get their own shorthand. Bleeding is the most common one and may appear as GIB or upper GI bleed, sometimes with black, tarry stool written as melena. A perforation is a hole through the wall of the stomach or duodenum and is an emergency. Scarring near the stomach outlet can narrow it, which is called gastric outlet obstruction.

When you see PUD next to one of these words, the ulcer was more than a passing problem. Anyone with sudden severe belly pain, vomiting blood or black stool needs urgent care.

Abbreviations that travel with peptic ulcer disease

Shorthand often seen around PUD
AbbreviationMeaningLink to PUD
EGDEsophagogastroduodenoscopyThe scope that sees and samples ulcers
PPIProton pump inhibitorThe main acid lowering medicine class
GERDGastroesophageal reflux diseaseAcid backing up into the food pipe, a different problem
GIGastrointestinal or the GI specialistThe team that often manages ulcers

For more condition shorthand of this kind, the diagnosis abbreviations hub sorts related terms by organ.

If PUD shows up in your own record

A short list like this, taken to the next visit, makes the plan easier to follow.

  • Was the ulcer in the stomach or the duodenum, and was it seen on a scope?
  • Was I tested for H. pylori, and do I need a test to confirm it is gone?
  • Which pain relievers are safer for me now?
  • How long should I keep taking the acid lowering medicine?

What follows from a PUD diagnosis depends on the person and the cause. Your doctor, nurse or pharmacist can explain how it applies to you before you change any medicine.

Frequently asked questions

What does PUD stand for in medical terms?

PUD stands for peptic ulcer disease. It covers open sores in the stomach lining and in the duodenum, the first part of the small intestine.

Is PUD the same as GERD?

No. GERD is acid flowing back up into the esophagus and causing heartburn, while PUD is an actual sore in the stomach or duodenum. A person can have both, and they are often treated with similar acid lowering medicines.

What does hx PUD mean in a chart?

Hx PUD means a history of peptic ulcer disease. The person had an ulcer at some point, and the team keeps it in mind when choosing medicines such as pain relievers or blood thinners.

How is peptic ulcer disease found?

An upper endoscopy, written EGD, lets a doctor look directly at the lining and take small samples. Breath, stool or blood tests can check for H. pylori, the bacterium often linked to ulcers.

Can PUD come back after it heals?

It can, especially if the cause is still there, such as ongoing NSAID use or an H. pylori infection that was not cleared. That is why follow up testing and a medicine review are common after treatment.