Most headaches that follow a steroid injection are mild and short-lived, clearing up within 24 hours. These transient headaches show up in roughly 2 to 5 percent of people depending on the type of injection and tend to need nothing more than rest and over-the-counter pain relief. The picture changes, however, if the needle accidentally nicks the dura, the membrane surrounding the spinal cord. That kind of headache, called a post-dural puncture headache, can linger for a week or longer and feels distinctly different from a run-of-the-mill tension headache.
Transient Headaches Versus Post-Dural Puncture Headaches
These two categories account for the vast majority of headaches people experience after a steroid injection, and telling them apart matters because they have very different timelines and very different implications.
A transient headache is the garden-variety kind. It comes on within hours of the injection, is not tied to your body position, and fades on its own. In a study of fluoroscopically guided cervical epidural injections, about 4.6 percent of patients reported a nonpositional headache that resolved within 24 hours.1PubMed. Complications of fluoroscopically guided interlaminar cervical epidural injections A separate study looking at facet joint injections found transient headache in about 1.6 percent of patients, again clearing quickly.2The Journal of Pain. Adverse events associated with fluoroscopically guided zygapophyseal joint injections These headaches are thought to come from a temporary spike in pressure changes near the spine, from the injected fluid volume itself, or from a brief stress response.
A post-dural puncture headache is a different animal. If the needle passes through the dura during an epidural steroid injection, cerebrospinal fluid can leak out through the hole. That leak drops the fluid pressure around your brain, and the resulting headache has a signature feature: it gets dramatically worse when you sit or stand up and eases when you lie down. This positional pattern is the hallmark clinicians look for. According to consensus guidelines, the headache usually appears within the first five days after the puncture and, although it can resolve within two weeks, it may be severe enough to interfere with daily activities.3JAMA Network Open. Consensus Practice Guidelines on Postdural Puncture Headache From a Multisociety, International Working Group Research on post-lumbar-puncture headache shows it resolves within seven days in about 80 percent of cases, though a small number of people experience symptoms that drag on for weeks or even months.4BMC Neurology. Efficacy of the epidural blood patch for the treatment of post lumbar puncture headache BLOPP
What Is Actually Happening Inside Your Head
For transient headaches, the mechanism is not entirely settled. One contributor is that injecting fluid into the epidural space temporarily changes the pressure dynamics around the spinal cord and brain. Most people’s systems adjust quickly, which is why the headache fades within a day.
For post-dural puncture headaches, the mechanism is better understood. When cerebrospinal fluid leaks through a hole in the dura, the pressure inside the skull drops. That low pressure allows the veins inside the cranium to expand, and those stretched vessels trigger pain. There is evidence that the leak also shifts the balance of how pressure is distributed between the brain and the lower spine, amplifying the pressure drop in the head when you stand up.5PubMed. The pathophysiology of lumbar puncture headache The good news is that the dural hole tends to seal itself over days, which is why the headache gradually improves even without treatment.
There is also a third, less discussed mechanism at play with steroid injections specifically. Corticosteroids suppress the production of prostaglandins, which are chemicals involved in inflammation and pain signaling. After the steroid’s effects begin to taper, prostaglandin levels can rebound. This rebound has been linked to headache, nausea, and general achiness as part of the broader steroid withdrawal syndrome.6Journal of Pain and Symptom Management. The Steroid Withdrawal Syndrome: A Review of the Implications, Etiology, and Treatments This type of headache tends to be milder and more diffuse than a dural puncture headache, and it typically appears days to weeks after the injection as the steroid wears off rather than immediately after the procedure.
How the Type and Location of the Injection Affects Risk
Not all steroid injections carry the same headache risk. The closer the needle goes to the spinal canal, the higher the chance of a dural puncture and therefore the higher the risk of a prolonged positional headache.
- Epidural steroid injections: These are the highest-risk category for post-dural puncture headache because the needle is placed in the epidural space, just millimeters from the dura. Accidental dural puncture during epidural procedures happens in a small but real percentage of cases. The cervical epidural injection study found a dural puncture rate of about 0.3 percent.1PubMed. Complications of fluoroscopically guided interlaminar cervical epidural injections
- Facet joint injections: These target the small joints between the vertebrae and do not normally approach the dura. Headache was reported in only 1.6 percent of patients and was transient.2The Journal of Pain. Adverse events associated with fluoroscopically guided zygapophyseal joint injections
- Peripheral joint injections: Steroid shots into a knee, shoulder, or hip are distant from the spine and carry essentially no risk of a dural puncture headache. Any headache after a peripheral joint injection is more likely related to the steroid itself, a stress response, or coincidence.
Cervical (neck-level) epidural injections deserve special mention. The epidural space is narrower in the cervical spine than in the lower back, which can make the procedure technically trickier. The study on cervical epidurals found that increased neck pain and transient headache were the two most common side effects, affecting about 6.7 percent and 4.6 percent of injections, respectively.1PubMed. Complications of fluoroscopically guided interlaminar cervical epidural injections Even so, those headaches were nonpositional and short-lived.
Who Gets These Headaches More Often
If you have had a steroid injection and are wondering whether your headache is predictable, a few personal factors make a difference. Research on dural puncture headaches consistently identifies certain groups as higher risk. Evidence-based guidelines indicate with high certainty that younger age and female sex are associated with a greater chance of post-dural puncture headache.7Regional Anesthesia and Pain Medicine. Evidence-based clinical practice guidelines on postdural puncture headache Other recognized risk factors include pregnancy, vaginal delivery, low body mass index, and being a non-smoker.8PubMed Central. Postdural puncture headache
A prior history of post-dural puncture headache is one of the strongest predictors. One study found that people who had experienced it before had more than four times the odds of experiencing it again, compared with those who had never had one.9PubMed. Post-dural (post-lumbar) puncture headache: risk factors and clinical features That same study identified people aged 31 to 50 as the peak risk group, with a headache rate roughly two and a half times higher than in other age brackets.
Your emotional state going into the procedure can also play a role. A prospective study found that preoperative depression and anxiety scores had a meaningful association with headache severity after spinal anesthesia, with depression scores showing the stronger link of the two.10PubMed. The effects of preoperative reactions of emotional distress on headache and acute low back pain after spinal anesthesia This does not mean the headache is imagined. Rather, emotional distress appears to amplify the brain’s pain processing, making a post-procedure headache feel worse and potentially last longer.
What To Do About a Post-Injection Headache
For the common transient headache, the management is straightforward: hydrate well, rest, and take an over-the-counter pain reliever if needed. Most people feel fine by the next morning.
Post-dural puncture headaches call for a more deliberate approach. Because the headache worsens when upright, lying flat provides significant relief. Staying in bed as much as possible in the first day or two is not just about comfort; it reduces the pressure gradient that worsens the cerebrospinal fluid leak. Caffeine, either as coffee or in tablet form, is commonly recommended because it constricts the dilated blood vessels in the brain. For many people, rest, fluids, and caffeine are enough to get through the days it takes for the dural hole to close on its own.
When conservative measures fail and the headache remains debilitating after several days, the standard escalation is an epidural blood patch. In this procedure, a small amount of your own blood is drawn and injected into the epidural space near the puncture site. The blood clots and seals the leak. The blood patch is considered the definitive treatment, though randomized evidence confirming its effectiveness over continued conservative care is still limited. In rare cases where symptoms persist even after a blood patch, repeat patching or further imaging may be needed.
For headaches tied to steroid withdrawal, the discomfort usually responds to standard pain relievers and resolves as your body readjusts its prostaglandin levels. If you are receiving repeated steroid injections over time, your doctor may space them out to reduce the likelihood of this rebound effect.
Older Adults and Unusual Presentations
Most of the research on post-dural puncture headache skews toward younger and middle-aged patients, partly because they are the group most affected. But older adults are not immune. A case series described two patients, aged 70 and 75, who developed headache, nausea, and vomiting after epidural steroid injections following multilevel lumbar surgery. Both improved with conservative treatment including diuretics and hypertonic saline.11Archives of Anesthesia and Critical Care. Complications of Nausea, Vomiting, and Headache after Epidural Steroid Injection in Two Elderly Patients after Multilevel Lumbar Surgery Prior spinal surgery may alter the anatomy enough to change how fluid dynamics behave after an injection, which could explain why these elderly patients developed symptoms that are less typical for their age group.
In general, clinicians tend to be less worried about post-dural puncture headache in older adults because the dura tends to be less compliant with age, producing smaller leaks. But if you are over 65 and develop a new, persistent headache after a spinal injection, it is worth reporting promptly, because the differential diagnosis in that age group includes more serious possibilities.
Red Flags That Demand Immediate Attention
The vast majority of post-injection headaches are benign and self-limiting. But a small number of cases involve complications that need urgent medical evaluation. Knowing the warning signs can make a real difference in outcomes.
- Headache with fever and neck stiffness: This combination raises concern for meningitis or spinal infection. A case report described a patient who developed severe headache and neck stiffness 10 days after a lumbar nerve root steroid injection. Imaging revealed a psoas abscess and meningitis requiring aggressive treatment.12Korean Journal of Anesthesiology. Cerebrospinal fluid infection after lumbar nerve root steroid injection
- New weakness, numbness, or difficulty with bladder or bowel control: These neurological symptoms could indicate a spinal epidural hematoma, a rare but serious collection of blood pressing on the spinal cord. Case reports describe patients developing new neurological deficits after epidural steroid injections, where early detection and surgical decompression were critical to preserving function.13PubMed Central. Epidural hematoma after routine epidural steroid injection Pain was the most common initial symptom in a case series of spinal epidural hematomas after pain procedures, with some patients also presenting with neurological deficits.14PubMed Central. Spinal epidural hematoma after pain control procedure
- Headache that worsens progressively rather than improving: While a post-dural puncture headache can be intense, it should show some improvement over days. A headache that keeps getting worse, especially after the first week, warrants imaging to rule out complications.
People on blood-thinning medications face a higher risk of epidural hematoma. Even when anticoagulation is stopped according to recommended guidelines before the procedure, hematoma can still occur in rare cases.15Regional Anesthesia & Pain Medicine. Lumbar Epidural Hematoma Following Interlaminar Fluoroscopically Guided Epidural Steroid Injection If you take blood thinners, your provider will have specific instructions about when to stop and restart them around the injection. Follow those instructions carefully, and report any new or escalating symptoms promptly.
When the Headache Might Not Be What It Seems
One diagnostic pitfall clinicians watch for is spontaneous intracranial hypotension, a condition where cerebrospinal fluid leaks on its own, unrelated to any procedure. If someone happens to develop a spontaneous leak around the time of a steroid injection, the headache can look exactly like a post-dural puncture headache: positional, worse when upright, relieved by lying down. A study examining cases where spontaneous leaks mimicked iatrogenic ones found that brain MRI showed typical low-pressure changes in about 78 percent of affected patients.16PubMed. Spontaneous intracranial hypotension mimicking iatrogenic spinal cerebrospinal fluid leaks
The distinction matters because treatment and prognosis differ. A dural puncture from a needle typically heals on its own or responds to a blood patch. A spontaneous leak may originate from a different location entirely and can require more extensive workup, including specialized imaging to find the leak site. Research comparing the two conditions found that while brain MRI showed intracranial hypotension signs in both groups, subtle imaging differences can help tell them apart.17PubMed Central. Comparisons of clinical characteristics, brain MRI findings, and responses to epidural blood patch between spontaneous intracranial hypotension and post-dural puncture headache If your positional headache is not improving after a reasonable period, or if a blood patch fails to provide lasting relief, your doctor may need to consider whether something other than the injection is driving the problem.
Other conditions that can masquerade as a post-injection headache include a caffeine withdrawal headache (common if you skipped your morning coffee because of fasting instructions), a tension headache from procedural anxiety, or a rebound headache from pre-existing migraine. None of these are dangerous, but they can extend the period of discomfort if not recognized and managed appropriately. The positional component remains the clearest distinguishing feature: if your headache is dramatically affected by sitting versus lying down, the leak-related mechanism is the most likely explanation. If the headache feels the same regardless of position, one of these other causes is more probable and the headache is likely to be briefer.