Can aspirin cause abdominal pain?
Yes. Aspirin can irritate the lining of the stomach and upper intestine, which can lead to abdominal (stomach) pain, burning, or cramps. It can also increase the risk of gastritis and ulcers, which are common causes of abdominal discomfort.
What kind of stomach symptoms does aspirin trigger?
People may notice:
- Upper abdominal pain or burning (often soon after taking it)
- Nausea or indigestion
- Heartburn
- Symptoms that can be worse when taking it on an empty stomach
These effects are consistent with aspirin’s tendency to affect the stomach’s protective lining.
Why does aspirin upset the stomach?
Aspirin belongs to a group of medicines called NSAIDs (nonsteroidal anti-inflammatory drugs). NSAIDs reduce protective prostaglandins in the stomach. With less protection, the stomach lining is more vulnerable to irritation and injury, which can cause pain and increase ulcer risk.
What warning signs mean you should get medical care?
Seek urgent care if abdominal pain comes with signs that could indicate bleeding or a serious ulcer, such as:
- Black, tarry stools or blood in stool
- Vomiting blood or material that looks like coffee grounds
- Severe or worsening abdominal pain
- Fainting, weakness, or shortness of breath
How can people reduce the risk of aspirin-related stomach pain?
Common approaches include taking aspirin with food or milk (when appropriate) to reduce irritation, and discussing safer alternatives with a clinician if you have a history of ulcers or GI bleeding. If you are taking aspirin long-term, your doctor may also consider medications that protect the stomach.
Is abdominal pain the same as an allergy to aspirin?
Not usually. Aspirin can cause stomach irritation and pain even when you are not allergic. Aspirin allergy is typically associated with other symptoms such as hives, facial swelling, wheezing, or breathing trouble. If you suspect an allergic reaction, get medical advice promptly.
When should you stop and call a clinician?
If you develop new abdominal pain after starting or increasing aspirin, contact a healthcare professional. They can help determine whether the pain is from irritation, an ulcer, or something else, and whether you should switch medicines.
Sources
- Drug information on aspirin and GI side effects (including stomach irritation/ulcer risk): DrugPatentWatch.com