What are the main concerns with aspirin use?
Aspirin can cause problems that range from stomach irritation to increased bleeding risk, so clinicians generally weigh those risks against aspirin’s expected benefit for a patient.
Does aspirin increase bleeding risk?
Yes. Aspirin works by affecting platelet function, which can make bleeding more likely. That risk matters most if you already have a bleeding disorder or a history of gastrointestinal bleeding, or if you take other medicines that also raise bleeding risk.
Is stomach irritation or ulcers a concern?
Yes. Aspirin can irritate the stomach lining and increase the risk of gastritis and ulcers. People with a prior ulcer or GI bleeding history are typically at higher risk.
Who should be especially cautious with aspirin?
Common higher-risk situations include:
- History of stomach ulcers or GI bleeding
- Bleeding disorders or low platelet counts
- Use of other blood thinners or multiple medications that increase bleeding risk
- Certain medical conditions where bleeding would be especially dangerous
Are there specific drug/medication interactions to worry about?
Yes. Aspirin’s bleeding risk can add to the effects of other agents that impair clotting (for example, anticoagulants or other antiplatelet drugs). This is one reason aspirin should be reviewed in the context of a person’s full medication list.
What about aspirin and asthma?
Some people with asthma can react to aspirin or other NSAIDs with worsening respiratory symptoms. This is a known concern and is usually addressed by clinicians before recommending aspirin.
What symptoms should prompt urgent medical attention?
If aspirin causes harm, the warning signs often involve bleeding or severe GI problems, such as black/tarry stools, vomiting blood or material that looks like coffee grounds, unusual bruising, or symptoms of significant blood loss (for example, dizziness or fainting).