Blood Thinners and Joint Injections: Safe?
Can you get cortisone, gel, or PRP injections while on blood thinners? Evidence-based safety guide for patients on warfarin, Eliquis, and Xarelto.
By Joint Pain Authority Team
Quick Answer
Most joint injections are safe for patients on blood thinners. Research shows the bleeding complication rate is less than 0.1% for standard joint injections in anticoagulated patients. Most guidelines say you do not need to stop your blood thinner before a cortisone or hyaluronic acid injection. However, you should always tell your doctor which medications you take, and certain procedures (like PRP) may require a temporary hold. Never stop a blood thinner on your own.
Why This Matters for Seniors
If you are over 65, there is a good chance you take a blood thinner. Roughly one in three Medicare beneficiaries is on some form of anticoagulant or antiplatelet medication. Common reasons include atrial fibrillation, heart valve replacement, deep vein thrombosis, or a history of stroke.
At the same time, arthritis pain affects millions of older adults. When you need a joint injection for knee, hip, or shoulder pain, a reasonable question comes up: Is it safe to get an injection while on blood thinners?
The short answer is yes, for most injection types. But the details matter.
What the Research Shows
Multiple studies have examined the safety of joint injections in patients taking anticoagulants. Here is what the evidence says:
The consensus among pain management specialists and rheumatologists is clear: for standard joint injections, continuing your blood thinner is safer than stopping it.
Blood Thinner Types and What to Know
Not all blood thinners work the same way. Here is a quick breakdown of the most common ones and how they relate to joint injections.
| Medication | Type | Common Brands | Injection Risk |
|---|---|---|---|
| Warfarin | Vitamin K antagonist | Coumadin, Jantoven | Low - check INR before procedure |
| Apixaban | Direct oral anticoagulant (DOAC) | Eliquis | Very low |
| Rivaroxaban | DOAC | Xarelto | Very low |
| Dabigatran | DOAC | Pradaxa | Very low |
| Clopidogrel | Antiplatelet | Plavix | Very low |
| Aspirin | Antiplatelet | Various | Very low |
| Enoxaparin | Low molecular weight heparin | Lovenox | Low - timing may matter |
Warfarin (Coumadin)
Warfarin requires the most attention because its blood-thinning effect varies from week to week. Most doctors will check your INR (a blood test measuring clotting time) before an injection. If your INR is within your therapeutic range (typically 2.0-3.0), the injection can usually proceed safely.
DOACs (Eliquis, Xarelto, Pradaxa)
The newer direct oral anticoagulants have more predictable effects and do not require routine blood monitoring. Most pain management guidelines say no changes are needed for standard joint injections while taking DOACs.
Antiplatelets (Plavix, Aspirin)
Aspirin and clopidogrel are generally continued for routine joint injections. If you are on dual antiplatelet therapy (aspirin plus Plavix), your doctor may want to discuss timing with your cardiologist for more invasive procedures.
Safety by Injection Type
Different injection procedures carry slightly different risk profiles.
Cortisone Injections
Hyaluronic Acid (Gel) Injections
PRP (Platelet-Rich Plasma) Injections
Stem Cell / Bone Marrow Aspirate Injections
What to Tell Your Doctor
Before any joint injection, make sure your doctor knows:
Special Precautions That Help
Even though the risk is low, a few simple precautions make joint injections even safer for patients on blood thinners:
- Apply firm pressure to the injection site for 3-5 minutes after the procedure (longer than the usual 1-2 minutes).
- Ice the area for 15-20 minutes after your injection to reduce swelling and bruising.
- Expect more bruising. A larger bruise around the injection site is normal for patients on blood thinners and does not indicate a complication.
- Schedule morning appointments if you take a once-daily blood thinner at night, so peak drug levels have passed.
- Use imaging guidance. Fluoroscopic or ultrasound-guided injections are more precise, meaning fewer needle passes and less tissue disruption.
Joint Pain Treatment Updates
Get evidence-based information about arthritis treatments, insurance coverage, and new research delivered to your inbox.
Join 10,000+ readers. No spam.
The Bigger Risk: Avoiding Treatment
Here is something important to consider. Many patients on blood thinners avoid joint injections entirely because they are worried about bleeding. This means they live with unnecessary pain, take more oral pain medications (some of which interact with blood thinners), and may become less active.
Inactivity from untreated joint pain creates its own health risks:
- Cardiovascular decline from reduced exercise (the very thing your blood thinner is protecting against)
- Weight gain that worsens both arthritis and heart conditions
- Increased fall risk from joint instability and deconditioning
- Depression and social isolation from pain-limited mobility
The evidence is clear: getting appropriate joint injections while on blood thinners is far safer than avoiding treatment altogether.
Frequently Asked Questions
Do I need to stop Eliquis before a knee injection?
For standard cortisone or gel injections, most guidelines say no. Eliquis (apixaban) does not need to be stopped for routine joint injections. The bleeding risk is extremely low, and the risk of stopping your anticoagulant (blood clot, stroke) is higher than the injection risk. Always confirm with your doctor, but do not assume you need to stop.
Can I get gel injections for knee arthritis while on warfarin?
Yes. Your doctor will likely check your INR before the injection to make sure it is in a safe range (usually below 3.0-3.5). If your INR is well-controlled, hyaluronic acid injections can proceed without stopping warfarin.
Is it safe to get a cortisone shot while taking Xarelto?
Yes. Cortisone injections are considered low-risk procedures, and Xarelto (rivaroxaban) does not need to be held for routine joint injections according to current guidelines. You may experience slightly more bruising at the injection site.
What about aspirin and joint injections?
Low-dose aspirin (81 mg) is almost never stopped for joint injections. Even full-dose aspirin (325 mg) is generally continued. The bleeding risk from a joint injection while on aspirin is negligible.
Should I stop fish oil supplements before an injection?
Fish oil has mild blood-thinning properties. Most doctors do not require stopping fish oil before a standard joint injection, but it is worth mentioning during your pre-procedure discussion. If you are on fish oil plus a prescription blood thinner, your doctor may suggest pausing the fish oil for a few days.
What if I am on both a blood thinner and aspirin?
Dual therapy (such as Eliquis plus aspirin) does increase bleeding risk slightly. For routine joint injections, most pain specialists still proceed without changes. For more invasive procedures like PRP or bone marrow aspirate, your doctor will likely coordinate with your cardiologist.
What are the signs of a bleeding complication after injection?
Significant swelling that keeps increasing after 24 hours, severe pain that worsens instead of improving, large expanding bruising, or warmth and redness that spreads. These are uncommon but should prompt a call to your doctor.
This article is for informational purposes only and does not replace medical advice. Never stop or change your blood thinner dose without consulting your prescribing physician.
Last reviewed: March 2026
Related Resources
Topics
Enjoyed this article?
Get more insights like this delivered to your inbox weekly.
Join 10,000+ readers. No spam.