Sciatica? It’s not just your spine. The Hip & Pelvic Floor Connection
Sciatica: the infamous nerve pain notorious for lighting up in the buttocks or down the leg. Oftentimes, people think that this pain must be coming from the spine, or that it could come from a disc herniation or narrowing of the spine “pinching” on nerves. But what if the pain was coming from further down?
Let’s do some myth busting: Not everyone with sciatica has spinal pathology. Just because someone has sciatica does not mean there’s a disk herniation or spinal narrowing (stenosis).
Humans are resilient beings that can tolerate load, force, and pressure. Our bodies are made to handle a lot of movements; but sometimes, our bodies aren’t ready for certain loads. Overload can result in disc herniations, compression of the spine, and other conditions – but did you know that 19-27% of people report no pain despite having a herniated disc? Similarly, 40% of people over the age of 50 have asymptomatic herniated discs.
Not everyone with a herniated disc will feel pain or symptoms – and not everyone with sciatica will have spinal pathology. This tells us that sciatica doesn’t always come from the spine; but potentially, this pain could be coming from somewhere else: the hips or the pelvic floor.
Let’s dive in.
Two areas that often play a role in sciatica symptoms are the hips and the pelvic floor.
These regions sit very close to the nerve pathways traveling into the leg, including the sciatic nerve and several smaller branches. When these regions are tight, weak, or become irritated or overloaded, they can sometimes mimic sciatica – or make true sciatica feel worse.
The Hip Connection
Your hips are designed to handle a large amount of movement and load. When the hips move well and the surrounding muscles are strong, they help distribute forces throughout the pelvis and spine.
But if the hips are stiff, weak, or irritated, the body may compensate in other ways.
For example:
Hip joint irritation or a hip labral injury can refer pain into the buttock or thigh.
Tight or overworked gluteal muscles can compress nearby nerves.
Limited hip mobility can cause the lower back to take on more movement than it should.
Over time, these compensations can increase stress around the nerves that travel down the leg.
Sometimes what feels like a nerve problem is actually a movement problem that is irritating the nerve secondarily.
The Pelvic Floor Connection
The pelvic floor is a group of muscles that sits at the base of the pelvis and helps support organs, control bladder and bowel function, and contribute to core stability.
These muscles also sit very close to several important nerves, including branches of the sciatic nerve and the pudendal nerve.
If the pelvic floor becomes overly tense, guarded, or fatigued, it can create pressure around nearby nerves or change the way the pelvis and hips move.
For some people, pelvic floor tension develops as a response to pain or injury elsewhere in the body. The nervous system tries to protect the area by increasing muscle activity.
This protective response can sometimes create a feedback loop, where the muscles stay tense even after the initial trigger has improved.
The result may be symptoms that feel very similar to sciatica:
buttock pain
deep pelvic pain
leg discomfort
tingling or nerve sensitivity
This doesn’t mean the nerve is permanently damaged. Often it means the system has become protective and sensitive, and it needs help returning to a more balanced state.
Why Pain Sometimes Feels Bigger Than the Injury
Another important concept when understanding sciatica is sensitization.
Nerves and the nervous system are not just passive wires—they actively respond to stress, inflammation, and repeated irritation.
When a nerve root is irritated, the surrounding tissues and nervous system can become more sensitive over time.
This happens in two main ways.
Peripheral Sensitization
Peripheral sensitization occurs at the level of the nerve itself.
When a nerve is irritated—by pressure, inflammation, or repeated strain—it becomes more reactive. Signals that normally wouldn’t be painful may suddenly feel uncomfortable or sharp.
Think of it like a bruise on your skin. When the area is fresh, even light pressure can hurt.
The same thing can happen with nerves.
This sensitivity is often temporary and improves as the nerve calms down and the surrounding environment becomes healthier.
Central Sensitization
Sometimes, when pain persists for a long time, the brain and spinal cord become more sensitive as well.
This is called central sensitization.
In this state, the nervous system becomes better at detecting potential threats. Pain signals are amplified, and the body may become more protective.
People may notice:
pain that spreads beyond the original area
increased sensitivity to movement
discomfort with positions that previously felt safe
heightened awareness of sensations in the body
While this can feel discouraging, it’s important to know that the nervous system is also adaptable.
Just as it can become more sensitive, it can also become less sensitive again with the right support, movement, and gradual exposure to activity.
The Good News
Understanding these contributors is important because it shows that sciatica is rarely just about one structure.
Instead, it’s usually a combination of factors involving the spine, hips, nerves, muscles, and the nervous system itself.
And that’s actually encouraging.
Because when we recognize the different pieces involved, we gain more opportunities to help the body recover.
Improving hip strength, restoring natural movement, calming sensitive nerves, and supporting the nervous system can all play a role in helping symptoms improve.
And for many people, these changes slowly allow the body to regain confidence, resilience, and comfort again.
