Can aspirin cause stomach pain?
Yes. Aspirin can irritate the stomach lining and can also increase bleeding risk in the gastrointestinal (GI) tract. That irritation can lead to stomach pain, burning, nausea, or indigestion. The risk is higher with higher doses, taking aspirin on an empty stomach, and using it more often.
What does aspirin-related stomach pain feel like?
People often describe:
- Burning or pain in the upper abdomen (stomach area)
- Indigestion or nausea
- Heartburn-like symptoms
If the irritation progresses, symptoms can overlap with gastritis or an ulcer.
How soon after taking aspirin does stomach pain happen?
Stomach irritation can start soon after a dose, especially if taken on an empty stomach. If symptoms are recurring or worsening over days to weeks, that can suggest more persistent irritation (such as gastritis or an ulcer).
Why does aspirin hurt the stomach?
Aspirin belongs to a class of medicines (NSAIDs) that reduce protective substances in the stomach and intestines. That can make the lining more vulnerable to acid, leading to irritation and, in some cases, ulcers or bleeding.
What increases the risk of aspirin stomach injury?
Common factors include:
- Taking aspirin without food
- Higher doses or frequent dosing
- Older age
- History of stomach ulcer or GI bleeding
- Alcohol use
- Using other medicines that raise bleeding risk (for example, other NSAIDs, corticosteroids, or blood thinners)
What should you do if aspirin is causing stomach pain?
- Stop taking aspirin and switch to a different pain/fever option only if it’s safe for you (for some people, stopping can be unsafe if aspirin was prescribed for heart/stroke prevention).
- Take future doses with food only if your clinician says it’s appropriate.
- Ask a clinician or pharmacist whether you should use a stomach-protecting medicine (such as a proton pump inhibitor) or a different pain reliever.
If aspirin was prescribed (for example, after a heart attack or stroke), do not stop without medical advice.
When is stomach pain from aspirin an emergency?
Get urgent medical care if you have any signs of GI bleeding, such as:
- Black, tarry stools
- Vomiting blood or material that looks like coffee grounds
- Severe or worsening abdominal pain
- Dizziness, fainting, or weakness
Is there a safer alternative if you need pain relief?
It depends on why you take aspirin. For many people, acetaminophen (paracetamol) is gentler on the stomach than aspirin/NSAIDs, but it does not replace aspirin’s blood-thinning/heart-protection effect. A clinician or pharmacist can help choose the safest option for your situation.
Quick check so I can tailor advice
Are you taking aspirin for pain, fever, or to prevent blood clots/heart attack? Also, how much aspirin are you taking and when did the stomach pain start after the dose?