Short Version:
A herniated disc in the lumbar spine can affect much more than the lower back. When a disc irritates or compresses a nerve root, it can contribute to pain, numbness, tingling, and weakness throughout the hips and legs. In my clinical practice, I anecdotally see this pattern in many men with pelvic floor symptoms: they may demonstrate significant hip weakness while also reporting radiating pain, tingling, or numbness into the leg or foot. When the glutes, adductors, hip rotators, and other stabilizing muscles are not functioning effectively, the body may compensate by increasing tension and guarding through the trunk and pelvic floor. Over time, this may contribute to pelvic pain, urinary, bowel, or sexual symptoms, and difficulty properly relaxing or coordinating the pelvic floor. While this does not mean that every lumbar disc herniation causes pelvic floor dysfunction, it highlights why a comprehensive pelvic floor evaluation should often examine the lumbar spine, neurological system, hips, and legs, not just the pelvic floor itself.
Long Version:
When most people think about a herniated disc in the lower back, they picture back pain or sciatica. They may imagine sharp pain traveling down the leg, tingling in the calf, or numbness in the foot. What is discussed less often is that a lumbar disc herniation can also affect strength and muscular control throughout the hip and pelvis. In some patients, this may be an important piece of information when persistent pelvic floor symptoms occur alongside hip weakness, leg symptoms, or a history of lower-back problems.
In my own clinical practice, I have anecdotally noticed this pattern in a significant number of men with pelvic floor complaints. During the evaluation, these patients may demonstrate weakness around one or both hips, but they will also frequently report symptoms farther down the leg, such as radiating pain, tingling, or numbness into the calf or foot. In some cases, the patient barely considers his back relevant because his primary complaint is pelvic. This observation does not prove that lumbar disc problems are causing pelvic floor dysfunction, and more research is needed to understand this relationship. However, there are sound anatomical and neurological reasons to consider the lumbar spine, nerve roots, hips, and pelvic floor together rather than treating them as completely separate systems.
A lumbar disc herniation occurs when disc material extends beyond its normal boundaries and can irritate or compress a nearby nerve root. When this produces radiculopathy, the result is not necessarily pain alone. Nerve root involvement can produce pain, numbness, altered sensation, reflex changes, and muscle weakness. This distinction is extremely important. A nerve is not simply a pain producing structure; it is also part of the communication system between the spinal cord and muscles. If the neural signal to a muscle is compromised, that muscle may not generate or coordinate force normally.
This can be readily observed around the hip. Different lumbar and sacral nerve roots contribute to different hip muscles. For example, L4 involvement can be associated with weakness in hip abduction, while L5 radiculopathy can produce weakness in hip extension in addition to weakness of ankle and toe movements. L5 symptoms can also travel through the buttock and lateral leg toward the top of the foot and great toe. Therefore, a patient who appears to have a weak glutes may not simply need more glute exercises. There may be a neurological component affecting how effectively that muscle can be recruited.
The same concept applies to the adductors and other muscles surrounding the pelvis. The lumbosacral plexus is an interconnected neurological network supplying the hips, legs, pelvis, and pelvic floor. The superior gluteal nerve receives contributions from L4-S1, the inferior gluteal nerve from L5-S2, and the sciatic nerve from L4-S3. The pudendal nerve, meanwhile, primarily arises from S2-S4. In other words, the neurological anatomy of the hip, leg, and pelvic floor exists in close proximity and shares overlapping spinal regions.
This does not mean that an ordinary L4-L5 or L5-S1 disc herniation automatically damages the pudendal nerve or directly causes pelvic floor dysfunction. That would be an oversimplification. The pelvic floor receives substantial innervation from the sacral region, particularly S2-S4, through the pudendal nerve and direct sacral branches. But lumbar and sacral neurological function cannot always be understood as completely isolated compartments. A sufficiently significant spinal or nerve root problem can alter strength, sensation, movement, loading strategies, and muscular coordination throughout the lumbopelvic region.
There is also a second possible mechanism that I find clinically important: compensation. Imagine that a disc herniation reduces the strength or control of the gluteals, hip rotators, adductors, or other muscles responsible for stabilizing the pelvis. The body still has to walk, climb stairs, exercise, sit, stand, and lift. It will find another way to create stability. One potential strategy is increased muscular guarding elsewhere around the pelvis and trunk. In some patients, the pelvic floor may become part of this compensation strategy.
This is why pelvic floor dysfunction should not always be viewed as simply a “tight pelvic floor” or a “weak pelvic floor.” A muscle can be overactive and still function poorly. If someone constantly braces through his abdomen and pelvic floor because his hips or trunk do not feel stable, those muscles may have difficulty relaxing when relaxation is actually required. Over time, this altered strategy could plausibly contribute to pelvic discomfort, urinary or bowel symptoms, sexual symptoms, or difficulty coordinating the pelvic floor.
The neurological importance of this region becomes even clearer when we consider male sexual and urinary function. The pudendal nerve carries somatic sensory and motor information involving the genitalia and pelvic floor, while sacral parasympathetic pathways arising from S2-S4 contribute to pelvic organ and sexual function. The bulbospongiosus, ischiocavernosus, urethral and anal sphincters, and other pelvic floor structures are intimately connected with these neural pathways. This is one reason a comprehensive pelvic floor examination should include more than the pelvic floor itself.
When I evaluate a man with pelvic floor symptoms, I therefore want to know what is happening at the lumbar spine, hips, and lower extremities. Is hip abduction weak? What about hip extension, rotation, or adduction? Are the two sides symmetrical? Is there a history of back pain? Does spinal movement reproduce or change the patient’s symptoms? Is there numbness or tingling? Has he noticed weakness during squats, running, stairs, or single-leg movements? Are there sensory changes in the calf or foot?
The feet can provide particularly valuable clues. Lumbar radiculopathy commonly produces symptoms well below the site of the actual problem. L5 nerve root irritation, for example, may produce sensory changes over the lateral leg and dorsum of the foot as well as weakness involving dorsiflexion and the great toe. Consequently, a patient presenting for pelvic symptoms who also mentions recurrent numbness, tingling, burning, or radiating pain into a foot deserves a broader neurological and orthopedic examination.
Treatment should similarly address the entire system when appropriate. Pelvic floor physical therapy may include breathing exercises, pelvic floor relaxation or strengthening, manual therapy, and coordination training, but treatment may also need to involve the lumbar spine and hips. Depending on the individual, that could include spinal mobility exercises, progressive hip strengthening, trunk strengthening, neural mobility work, walking, squats, deadlifts, carries, and eventually a return to heavier or more athletic movements.
The goal is not simply to make the pelvic floor stronger. It is to restore the patient’s ability to produce force when necessary, relax when necessary, and coordinate the pelvic floor with the hips, trunk, breathing system, and the rest of the body.
There is an important medical caveat. New bladder or bowel dysfunction, saddle anesthesia, rapidly progressive leg weakness, or major neurological changes in the setting of back or leg symptoms can indicate significant compression of the cauda equina or other serious neurological pathology and require urgent medical assessment. These symptoms should not simply be treated as routine pelvic floor muscle dysfunction.
For less urgent presentations, however, I believe clinicians should remain curious about the connection between the lumbar spine and the pelvis. Anecdotally, I see many men in the clinic whose pelvic floor symptoms coexist with hip weakness and signs suggestive of lumbar nerve involvement, including radiating leg pain and numbness or altered sensation in the feet. That does not establish causation, and this specific clinical pattern deserves more direct research. But it does reinforce an important principle: the pelvic floor does not function in isolation.
Sometimes the place where a patient feels the symptoms is only one part of the problem. If pelvic floor treatment focuses exclusively on the pelvis while ignoring significant hip weakness, neurological findings, or lumbar dysfunction, an important contributor may be missed. Examining the spine, hips, legs, neurological system, and pelvic floor together can provide a much more complete picture and ultimately allow treatment to address not just where the patient hurts, but why the entire system may not be functioning properly.
