Short answer · Medically reviewed summary · Last updated: 2026-05-08
Arachnoiditis, or adhesive arachnoiditis, is a painful, chronic condition caused by inflammation of the arachnoid lining surrounding the spinal nerves, leading to nerve damage and scar tissue formation. Common symptoms include severe, often electric-shock-like lower back pain, neurological deficits such as burning or tingling in the feet, and significant bladder, bowel, or sexual dysfunction. What are the most common symptoms of Arachnoiditis? The clinical presentation of Arachnoiditis is highly variable, reflecting the specific nerves affected by the inflammation.
21 people with Arachnoiditis have shared their first-person experience on this question at DiseaseMaps.
Arachnoiditis, or adhesive arachnoiditis, is a painful, chronic condition caused by inflammation of the arachnoid lining surrounding the spinal nerves, leading to nerve damage and scar tissue formation. Common symptoms include severe, often electric-shock-like lower back pain, neurological deficits such as burning or tingling in the feet, and significant bladder, bowel, or sexual dysfunction.
The clinical presentation of Arachnoiditis is highly variable, reflecting the specific nerves affected by the inflammation. Patients frequently report a constellation of sensory and motor disturbances. Key symptoms include:
The severity of Arachnoiditis depends on the extent of the inflammatory process and the resulting adhesive fibrosis. Some individuals may experience mild, intermittent discomfort, while others suffer from debilitating, life-altering pain that limits mobility. Because Arachnoiditis impacts the nervous system, symptoms can fluctuate based on physical activity and the ongoing state of neuro-inflammation.
While Arachnoiditis is a chronic condition, sudden changes in neurological function require prompt evaluation. Seek immediate care if you experience a sudden loss of bladder or bowel control, significant new-onset weakness in the legs, or an abrupt shift in the intensity of your pain, as these may indicate worsening spinal cord compression or acute nerve involvement.
Arachnoiditis often follows a progressive course if the underlying neuro-inflammation is not managed. Over time, the formation of scar tissue can lead to more permanent nerve entrapment, potentially resulting in chronic, intractable pain and increasing physical disability. Currently, 423 people with Arachnoiditis have joined the DiseaseMaps community to share their experiences with this progression and their management strategies.
Medical disclaimer: This content is for informational purposes only and does not constitute medical advice, diagnosis, or treatment; always consult with your healthcare provider regarding your specific condition.