Aspirin 75 mg is often prescribed after a heart stent to help prevent clots from forming inside the stent. Stopping aspirin suddenly without your doctor?s advice can raise the risk of the stent getting blocked, a heart attack, or reduced blood flow to your heart. This risk is higher if your stent was placed recently or if you have other heart risk factors. However, aspirin can also cause stomach irritation and increase the chance of bleeding in some people. Doctors weigh these risks carefully and may change your treatment based on how severe the bleeding is, the type of stent you have, how long ago it was placed, and your current heart health. Sometimes, they may use medicines to protect your stomach or try other blood-thinning options instead of stopping aspirin right away. Never stop taking aspirin on your own unless your heart doctor or treating physician tells you to. If you notice black stools, vomit blood, have chest pain, feel very weak, short of breath, or dizzy, seek medical help immediately, as these could be signs of serious bleeding or heart problems.