How Do I Care for My Catheter Site After an Angiogram?

During a coronary angiogram or stent placement for a heart attack, doctors insert a catheter through an artery in your wrist (radial access) or groin (femoral access). Caring for this puncture site properly is critical for healing and preventing serious bleeding.

🚨 Important Safety Note: This page focuses on the catheter site. If you experience new chest pressure, chest pain, shortness of breath, or fainting, call 911 immediately. These could be signs of another heart attack, which is an emergency entirely separate from your catheter site.

Basic Care and Hygiene

Your care team will give you specific discharge instructions based on how they closed the artery (such as a stitch, a plug, or a compression band). Always follow their written instructions first. In general:

• Dressing removal: Leave the initial dressing or compression band on for the exact amount of time your doctor instructed. This can vary from a few hours to 24 hours depending on the device used ^[1][2].
• Keep the area clean and dry: Wash your hands before touching the site. You can usually shower after the initial dressing is removed, gently washing the area with mild soap and water. Do not scrub the site ^[3].
• Avoid soaking: Do not take baths, use hot tubs, or swim until your doctor confirms the puncture is completely healed.
• No ointments: After washing, pat the area gently with a clean towel. Do not apply lotions, powders, or ointments to the wound.

A Critical Warning About Blood Thinners

Because you recently had a heart attack, you are likely taking antiplatelet medications (such as aspirin, clopidogrel, ticagrelor, or prasugrel) or other blood thinners (anticoagulants) to prevent blood clots in your new stent or your heart ^[4]. These medications increase your risk of bleeding.

Never stop, skip, or change your dose of these medications just because you notice bruising at your catheter site. Stopping them without your cardiologist’s explicit instruction can cause a fatal blood clot or another heart attack.

Activity Restrictions (Follow Your Hospital’s Guide)

Because an artery was punctured, pressure inside the blood vessel can cause it to reopen if you strain yourself. Your exact restrictions will depend on the access site, the closure device used, and your overall recovery. Treat the following as general examples, and refer to your discharge paperwork for your specific limits:

If You Had Wrist (Radial) Access

• You will typically be told to avoid lifting anything heavier than 2 to 5 pounds (like a milk jug) with the affected arm for several days.
• Avoid activities that require repetitive wrist bending, heavy pushing, or pulling (such as vacuuming, gardening, or using hand tools).

If You Had Groin (Femoral) Access

• You will likely be instructed to avoid heavy lifting (often anything over 10 pounds), strenuous exercise, and deep squatting for about a week.
• Limit climbing stairs if possible. If you must use stairs, take them slowly, one step at a time.
• To avoid straining during bowel movements, ask your care team if you should use a clinician-approved stool softener and drink extra fluids.

Expected Healing vs. Warning Signs

Directly inspecting the access site every day is the best way to catch potential problems early ^[3].

What is expected:
It is normal to have mild tenderness, a small, stable bruise, or a tiny, pea-sized lump beneath the skin where the catheter went in. This is just part of the normal healing process.

When to Seek URGENT Medical Assessment

Contact your cardiology team immediately or seek urgent/same-day care if you notice:

• A pulsating lump: A lump that is slowly growing or feels pulsatile (beating like a pulse) could indicate a pseudoaneurysm (a pooling of blood outside the artery walls). This requires urgent medical evaluation ^[5][6].
• Signs of Infection: Increasing redness, warmth, or swelling around the site, a fever, or yellow/green pus oozing from the puncture ^[7].

🚨 When to Call 911 (Emergency Care)

Call 911 or go to the nearest emergency room immediately if you experience any of the following. Do not drive yourself to the emergency department.

• Uncontrolled bleeding: If the site starts bleeding actively, lie down flat. Apply firm, continuous pressure directly over the puncture site (for the wrist) or exactly where your hospital taught you (for the groin) using clean gauze or a towel ^[8]. Do not stop holding pressure to check if the bleeding has stopped while waiting for help.
• A rapidly enlarging swelling: A tense, hard, or fast-growing lump at the puncture site can mean the artery is actively leaking, forming a hematoma (a large pool of blood) ^[9][10].
• Loss of blood flow to the limb: Numbness, weakness, severe pain, or a feeling of coolness in the hand or leg where the catheter was inserted can indicate arterial occlusion (a blocked artery) or nerve injury ^[11][12]. If your hand or foot becomes pale or blue, seek immediate help.
• Hidden internal bleeding: If you had a groin puncture, bleeding can sometimes happen internally behind your abdominal organs (retroperitoneal hemorrhage). Sudden, unexplained lower back, flank, or abdominal pain warrants immediate emergency assessment, even if the catheter site looks normal ^[13]. If this pain is accompanied by dizziness, fainting, severe weakness, or a rapid heartbeat, it is a life-threatening emergency ^[14].