20/08/2026
Cortisone Injections: What Are the Risks?
Cortisone injections, also called corticosteroid injections, are used to reduce inflammation and pain in joints and surrounding soft tissues. They may be injected into joints, bursae, tendon sheaths, or around painful structures. Direct injection into some tendons is usually avoided because steroids may weaken tendon tissue.
For the right condition, cortisone may provide useful short-term pain relief. However, possible risks include:
1. Temporary pain flare
Pain may increase for a day or two after the injection before settling.
2. Infection
Infection is rare but potentially serious. Sterile technique reduces this risk.
3. Tendon weakening
Repeated injections around some tendons may increase the risk of tendon weakening or rupture.
4. Cartilage effects
Repeated injections into the same joint may negatively affect cartilage, so frequency is often limited.
5. Skin changes
Skin lightening, thinning, or loss of fatty tissue around the injection site may occur.
6. Increased blood glucose
Steroid injections may temporarily raise blood sugar, especially in people with diabetes.
7. Systemic effects
Some people experience facial flushing, sleep disturbance, mood changes, or temporary increases in blood pressure.
Not every patient responds the same way. Some gain significant relief, while others notice little benefit.
Before having an injection, discuss your diagnosis, expected benefit, risks, previous injections, and medical history with your doctor. Physiotherapy can also help determine whether exercise, load modification, manual therapy, or other rehabilitation strategies should be part of your treatment plan. This helps ensure pain relief supports recovery rather than replacing rehabilitation.