What Happens After a Cortisone Shot for Hip Bursitis?

A cortisone shot for hip bursitis typically delivers noticeable pain relief within a few days, though you may experience a temporary increase in soreness before things improve. Most people feel significantly better within the first week, with relief lasting anywhere from a few weeks to several months depending on the underlying problem. The story after the injection is more layered than a simple “pain goes away,” though, because what’s happening in the hip and how the body responds to the steroid both matter for your outcome.

The First Few Days After the Injection

The injection itself is quick. Your doctor will likely use a combination of a corticosteroid and a local anesthetic. Surveys of sports medicine physicians show that most use triamcinolone or methylprednisolone at doses between 21 and 40 mg, mixed with lidocaine.¹ The lidocaine can provide almost immediate numbing of the area, so you might walk out of the office feeling better than when you walked in. That numbness wears off within a few hours, and this is where things can get temporarily worse before they get better.

Roughly one in five people experience what’s called a post-injection flare, a spike in pain at the injection site that can last a day or two. In a study tracking 140 patients who received musculoskeletal corticosteroid injections, about 21% reported a flare of pain after the procedure.² This flare happens because the corticosteroid crystals themselves can irritate the surrounding tissue. Particulate corticosteroids like triamcinolone acetonide form microcrystals that linger in the tissue, which is actually what gives them their sustained anti-inflammatory effect, but those crystals can provoke a brief inflammatory reaction before the steroid kicks in.³ Ice, rest, and over-the-counter pain relievers usually manage the flare until the steroid’s anti-inflammatory effect takes over, typically within two to three days.

How Long the Relief Lasts

Once the cortisone begins working, most people notice meaningful improvement in both pain and hip function. A study of 137 patients receiving ultrasound-guided trochanteric bursa injections found that about 80% had a successful outcome at one month, roughly 65% still had relief at three months, and about 56% maintained improvement at six months.⁴ Those numbers tell a clear story: cortisone works well in the short term, but the effect gradually fades for many people.

A systematic review looking at corticosteroid injection as the primary treatment found that symptom resolution and the ability to return to activity ranged widely, from about half of patients to nearly all, depending on the study and whether other treatments like physical therapy were used alongside the injection.⁵ The wide range isn’t surprising given how much variation exists in what’s actually causing the pain, which is worth understanding if you want to know whether your shot is likely to hold.

Why the Diagnosis Matters More Than You Think

“Hip bursitis” is the common shorthand, but the condition your doctor is treating is more accurately called greater trochanteric pain syndrome, or GTPS. The distinction matters because isolated bursitis, where the bursa itself is the main problem, turns out to be much less common than historically assumed. A pilot study using standardized ultrasound assessment found that isolated bursitis accounted for only about 9% of GTPS cases, consistent with a larger analysis that reported a similar rate.⁶ In most cases, the pain comes from tendon problems, specifically lesions and tendinopathy of the hip abductor tendons (the gluteus medius and minimus), which are the most common cause of lateral hip pain.⁷

This matters for what happens after your cortisone shot because cortisone reduces inflammation effectively, but it doesn’t repair a damaged tendon. If your pain is primarily from an inflamed bursa, the injection may resolve your symptoms for a long time or even permanently. If the underlying issue is a degenerative or torn abductor tendon, the cortisone will suppress the inflammation and pain temporarily, but the structural problem remains. That’s a big part of why some people get lasting relief and others see their symptoms return within weeks or months. The same study on ultrasound-guided injections found that people who also had facet joint pain, sacroiliac joint problems, or knee arthritis were less likely to have a successful outcome at six months, suggesting that multiple overlapping pain generators make the picture more complicated.⁴

Potential Side Effects and Risks

Cortisone injections are generally safe, but they aren’t without risk, and the risks increase with repeated use. Local side effects include skin changes at the injection site like lightening of the skin or thinning, tendon weakening or rupture, and in rare cases, accelerated joint degeneration or bone injury.⁸ The particulate nature of common corticosteroids like triamcinolone contributes to some of these problems: the microcrystals that give the drug its long-acting effect can also cause tissue damage with repeated exposure, including cartilage toxicity, soft tissue calcification, and tendon weakening.³

Infection is the most serious local risk, though it is rare. A case report of septic bursitis developing after a hip corticosteroid injection underscored that while infection after hip injection is a known theoretical risk and rarely reported, it does happen and can cause significant harm when it does.⁹ Signs to watch for include fever, worsening redness or swelling at the injection site, and pain that gets dramatically worse rather than better in the days after the shot. If any of those develop, contact your doctor promptly.

Blood Sugar Spikes for People With Diabetes

If you have diabetes, there’s a specific effect to be aware of. Cortisone is a steroid, and steroids raise blood sugar. A study tracking blood glucose in diabetic patients after musculoskeletal steroid injections found a significant rise in blood sugar on the first day after the injection. By the second day, glucose levels had returned to baseline and were no longer significantly elevated compared to pre-injection values.¹⁰ The spike is temporary, but if you manage your diabetes closely with insulin or medication, it’s worth discussing with your doctor beforehand so you can plan for that first day. Some physicians will adjust insulin doses preemptively or schedule the injection earlier in the day so you can monitor glucose before bed.

Getting Back to Normal Activity

Most doctors will tell you to take it easy for a day or two after the injection, but that doesn’t mean you’re out of commission. One concern people have is whether they can safely drive home. Research measuring brake reaction times before and after hip injections found no significant difference: average reaction time was 0.83 seconds before the injection and 0.84 seconds after, while pain scores actually decreased.¹¹ So in most cases, driving yourself home is fine, though you should follow whatever specific guidance your provider gives.

For exercise and physical activity, the general advice is to avoid heavy loading of the hip for the first 24 to 48 hours. Walking is fine. Running, heavy squats, or long hikes are better postponed for a couple of days. After that initial rest period, gradually returning to activity is encouraged. In fact, exercise after the injection is not just safe, it’s one of the most important things you can do to make the relief last, as the next section explains.

Why Exercise Matters More Than the Injection Itself

Here’s something that doesn’t get emphasized enough: the cortisone shot may feel like the main treatment, but the evidence suggests exercise therapy is actually more effective for long-term outcomes. A network meta-analysis of 19 randomized controlled trials involving over 1,700 participants found that exercise therapy produced the most significant improvement in reducing pain and enhancing functional outcomes. Injection therapy did show advantages in function as measured by certain hip scores, but exercise outperformed it overall for pain reduction.¹²

The practical takeaway is that the cortisone shot works best as a bridge. It reduces your pain enough that you can actually do the exercises, specifically hip abductor strengthening and stretching, that address the underlying tendon and muscle weakness driving the condition. If you get the shot and skip the rehab, you’re likely to end up back where you started once the cortisone wears off. The people who do best tend to use the window of reduced pain to establish a consistent strengthening program.

What If the Shot Wears Off and You Need More

Many people get good relief from a first injection and then face the question of whether to get another when the pain returns. Most physicians limit repeat cortisone injections to somewhere around three or four per year in the same location, though this isn’t a hard-and-fast rule backed by a single definitive study. The concern with frequent injections is the cumulative tissue damage mentioned earlier: repeated steroid exposure can weaken tendons, thin the skin, and potentially contribute to bone changes. Each injection carries the same small risk of infection and other local complications.⁸

If you find that cortisone provides only short-lived relief or is losing effectiveness with each round, it’s a signal to explore other options rather than chasing diminishing returns with more injections.

Platelet-Rich Plasma as an Alternative

Platelet-rich plasma, or PRP, has emerged as a potential alternative to cortisone for lateral hip pain. PRP is made from your own blood, concentrated and re-injected to promote healing. The research is still evolving, but the early comparative data is interesting. A systematic review and meta-analysis comparing PRP to corticosteroid injections for greater trochanter pain syndrome concluded that PRP injections were more effective than corticosteroid at roughly two years of follow-up.¹³

A randomized controlled trial with a two-year follow-up looked at this more closely and found that PRP injections provided benefits lasting up to two years, while corticosteroid injections offered their maximum relief within about six weeks and no meaningful benefit beyond 24 weeks.¹⁴ The trade-off is that PRP is typically more expensive, often not covered by insurance, and the initial recovery may be more uncomfortable since PRP works by triggering an inflammatory healing response rather than suppressing inflammation. If cortisone has stopped giving you durable relief, though, PRP is a conversation worth having with your doctor.

When Surgery Enters the Picture

For the majority of people, a combination of cortisone injections, exercise therapy, and activity modification resolves GTPS without surgery. A systematic review confirmed that traditional nonoperative treatment helped most patients and that shockwave therapy was a reasonable alternative, with surgery reserved for refractory cases.⁵ But when months of conservative treatment fail and the pain is affecting your quality of life, surgical options exist.

The clearest indication for surgery is failure of conservative management combined with loss of abductor muscle strength, which typically suggests a significant tendon tear rather than simple inflammation. Both open and endoscopic approaches have been reported with good clinical results.¹⁵ Surgical procedures range from removing the inflamed bursa (bursectomy) to releasing a tight iliotibial band or repairing torn gluteus medius tendons. In a case series of 11 patients who underwent endoscopic treatment after failing nonoperative strategies, all reported significant pain reduction and 10 of 11 reported improved function, with no complications observed.¹⁶

That said, surgery for hip bursitis-related pain is uncommon. Most people reading this article will never need it. The path typically goes: cortisone for quick relief, structured exercise to maintain that improvement, and further investigation (often with MRI or ultrasound) if the pain keeps returning, to figure out whether a tendon tear or other structural issue is driving the symptoms.

The Role of Imaging and Injection Accuracy

One factor that influences how well a cortisone shot works is whether it actually lands in the right place. Injections around the hip can be done “blind” using anatomical landmarks or guided by ultrasound. Ultrasound guidance lets the physician watch in real time as the needle enters the bursa, which improves accuracy. The study with 80% success at one month specifically used ultrasound-guided injections.⁴ If your first injection didn’t work well, it’s worth asking whether it was done with imaging guidance, because a misplaced injection can simply miss the target tissue.

Ultrasound is also useful for diagnosis. As mentioned earlier, what gets labeled as bursitis is frequently a tendon problem, and ultrasound can distinguish between the two. If your cortisone shot gave temporary relief but the pain returned quickly, an imaging study may reveal a gluteal tendon tear or tendinopathy that explains why the inflammation keeps recurring. That diagnostic information changes the treatment plan, potentially steering the conversation toward PRP, a focused tendon rehabilitation program, or a surgical consultation rather than another round of cortisone.