Quick Summary
- A lumbar puncture headache is a positional headache that occurs after a spinal tap due to cerebrospinal fluid (CSF) leakage.
- Most cases resolve within a few days without specific treatment, and more than 85% improve spontaneously.
- Procedure-related techniques reduce risk; bed rest and increased fluids do not prevent these headaches.
- Epidural blood patch is an established option when conservative care fails or symptoms persist.
What Is a Lumbar Puncture (Spinal Tap) and Why Is It Performed?
A lumbar puncture, often called a spinal tap, is a procedure where a thin needle is carefully inserted into the lower back to access the fluid that surrounds the brain and spinal cord—cerebrospinal fluid (CSF). This technique is a valuable diagnostic tool for a range of neurological conditions.
Doctors perform lumbar punctures to help identify infections like meningitis, evaluate unexplained neurological symptoms, diagnose conditions such as multiple sclerosis or Guillain-Barré syndrome, and occasionally, to rule out cancers affecting the brain or nervous system. In some cases, a lumbar puncture is also used to administer medications, such as spinal anesthetics for certain surgeries.
Lumbar punctures are considered a routine part of modern medical care when detailed information about the central nervous system is needed.
What Is a Lumbar Puncture Headache?
A lumbar puncture headache—commonly referred to as a spinal headache or post–lumbar puncture headache—is a positional headache that develops after a lumbar puncture (spinal tap). It occurs when CSF leaks through the small opening in the dura created by the needle, lowering CSF pressure around the brain and leading to stretching of pain-sensitive structures.
A key defining feature is posture dependence:
- Headache worsens when sitting or standing
- Headache improves when lying down
This positional pattern helps distinguish it from other headache types.
Why Do Lumbar Puncture Headaches Occur?
CSF normally cushions and supports the brain. When CSF leaks faster than it can be replaced, intracranial pressure drops. Evidence shows that reduced CSF volume and pressure can cause traction on pain-sensitive intracranial structures when a person is upright, resulting in headache pain. Although CSF leakage is clearly involved, the precise biological mechanisms producing pain are not fully understood.
How Common Are Lumbar Puncture Headaches?
Lumbar puncture headaches are a known complication of spinal taps. High-quality studies report that they occur in approximately 10% to 40% of lumbar puncture procedures. Rates vary depending on needle size and design, procedural technique, and patient-related risk factors.
Symptoms
Verified symptoms include:
- Dull or throbbing headache, often in the front or back of the head
- Headache that worsens when upright and improves when lying flat
- Nausea
- Visual changes, including light sensitivity
- Dizziness (vertigo)
- Neck pain or stiffness may occur
Less common but documented symptoms include ringing in the ears and, rarely, double vision.
Onset and Duration
- Symptoms most often begin within 24–72 hours after a lumbar puncture, though later onset has been reported.
- In the majority of cases, headaches resolve within a few days without specific treatment.
- More than 85% of cases improve spontaneously.
Risk Factors
Evidence-supported risk factors include:
- Use of larger or cutting spinal needles
- Younger age
- Pregnancy
- Lower body mass index
- History of headaches
Procedural factors play a substantial role in determining risk.
Prevention
What Helps
Prevention focuses on procedure-related techniques, not patient behavior after the test:
- Use of atraumatic (non-cutting) needles
- Proper needle orientation during insertion
- Reinserting the stylet before withdrawing the needle
The best way to prevent a lumbar puncture headache is for the doctor to use an atraumatic needle. These specialized needles are designed to separate, rather than cut, the dural fibers—making them less likely to allow spinal fluid to leak. Since the brain floats in cerebrospinal fluid, any leak can reduce fluid volume and pressure, causing the brain to sag slightly within the skull. This sagging stretches pain-sensitive structures and triggers headache symptoms.
Optimizing needle technique and using atraumatic needles have been shown in studies to significantly reduce the risk of post-lumbar puncture headache. These procedural strategies are far more effective than any specific patient actions taken after the test.
What Does Not Help
There is no high-quality evidence that:
- Bed rest after the procedure prevents lumbar puncture headaches
- Increased fluid intake prevents lumbar puncture headaches
Treatment Options
Conservative Management
Most lumbar puncture headaches improve with supportive care, including:
- Lying in a comfortable, usually flat, position
- Simple analgesics for symptom relief
- Observation and time
In addition, resting, staying well hydrated, and consuming drinks with caffeine—or using caffeine supplements—may help relieve headache pain. Lying down is especially helpful if the headache worsens when standing or sitting upright. Oral painkillers may also be prescribed for more severe discomfort.
More than 85% of cases resolve without invasive treatment.
Epidural Blood Patch
An epidural blood patch is a well-established treatment for persistent headaches. It involves injecting the patient’s own blood into the epidural space, where it forms a clot that seals the CSF leak. Evidence shows success rates ranging from 60% to 98%, and it is typically considered when conservative treatment fails or symptoms persist for several days.
In practice, if simple measures like lying flat, rest, fluids, and analgesics are not enough, a blood patch is often the next step. During this procedure, blood is drawn from the patient’s arm and then injected into the lower back just outside the dura. This creates a seal over the leak, usually bringing rapid relief. In some cases, the procedure may need to be repeated for complete resolution.
For the rare situation where a blood patch does not resolve the headache, further interventions may be considered. Doctors can use a type of surgical glue to close the leak, or—very rarely—close the hole surgically with stitches or other material. These approaches are reserved for the most persistent cases that do not respond to standard therapies.
Surgical Interventions
If headaches persist despite conservative management and an epidural blood patch, less common surgical measures may be considered. These options involve directly sealing the source of the CSF leak. Approaches include applying surgical adhesive (such as fibrin glue) to close the small dural hole or, in rare cases, surgically repairing the leak with sutures or other durable materials. These interventions are reserved for headache cases that do not respond to standard therapies and are performed by specialists experienced in treating persistent CSF leaks.
When to See a Doctor
Medical evaluation is recommended if:
- The headache is severe
- Symptoms persist or worsen despite conservative care
Urgent medical attention is advised if any of the following occur:
- Loss of sensation or weakness in the legs
- Difficulty urinating
- Seizures
These symptoms may indicate rare but serious complications.
Frequently Asked Questions
How can you tell if a headache is from a lumbar puncture?
Lumbar puncture headaches are characteristically positional, worsening when upright and improving when lying down, and typically begin after a recent spinal tap.
How long do lumbar puncture headaches last?
Most resolve within a few days, and over 85% improve without specific treatment.
Does drinking more fluids prevent spinal headaches?
There is no high-quality evidence showing that increased fluid intake prevents lumbar puncture headaches.
Are lumbar puncture headaches dangerous?
Most are not dangerous and resolve on their own. However, untreated severe cases can occasionally lead to complications, which is why persistent or severe symptoms require medical evaluation.
When is an epidural blood patch used?
An epidural blood patch is used when headaches do not improve with conservative measures or persist beyond several days.
What causes a spinal headache after a lumbar puncture?
It is caused by leakage of cerebrospinal fluid, leading to reduced intracranial pressure and stretching of pain-sensitive structures.
How do you get rid of a lumbar puncture headache?
Most resolve with rest, analgesics, and time. Persistent cases may require an epidural blood patch.
Can bed rest prevent lumbar puncture headaches?
There is no high-quality evidence supporting this.
Can caffeine treat spinal headaches?
There is no high-quality evidence supporting this as a reliable treatment.
APA References List
Ahmed, S. V., Jayawarna, C., & Jude, E. (2006). Post lumbar puncture headache: diagnosis and management. Postgraduate Medical Journal, 82(973), 713–716. https://pmc.ncbi.nlm.nih.gov/articles/PMC2660496/
Cleveland Clinic. (n.d.). Spinal headache: What it is, causes, symptoms & treatment. https://my.clevelandclinic.org/health/diseases/17927-spinal-headaches
Evans, R. W., Armon, C., Frohman, E. M., & Goodin, D. S. (2000). Assessment: Prevention of post-lumbar puncture headaches: Report of the therapeutics and technology assessment subcommittee of the American Academy of Neurology. Neurology, 55(7), 909–914. https://pubmed.ncbi.nlm.nih.gov/11061243/
Kwak, K. H. (2017). Postdural puncture headache. Korean Journal of Anesthesiology, 70(2), 136–143. https://pmc.ncbi.nlm.nih.gov/articles/PMC5370299/
Mayo Clinic Staff. (2022). Spinal headaches: Symptoms and causes. Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/spinal-headaches/symptoms-causes/syc-20377913