Start with a symptom
Foot Drop: Difficulty Lifting the Front of the Foot
Foot drop is the name for difficulty lifting the front of the foot. Like sciatica it describes a symptom rather than a diagnosis, and several conditions in this library list it. Each guide below explains what the condition is and sets out its own warning signs — read that section on the guide itself.
7 guides on this page, including 1 condition that mimic spine pain.
This article is general education, not medical advice. It cannot account for your history, imaging, or examination — talk to a qualified clinician about your own care.
Spine conditions covered here
- Lower BackNeeds prompt medical assessment
Lumbar Motor Deficit
Also called: foot drop, leg weakness from a pinched nerve
New or worsening leg or foot weakness, such as foot drop, caused by a compressed lumbar nerve root, and a signal that timely evaluation matters.
Read the full guide - Lower Back
Lumbar Disc Herniation
Also called: slipped disc, sciatica, herniated disc in the lower back, ruptured disc
When part of a disc in the lower back displaces and presses on a nerve root, causing sciatica: pain, numbness, or weakness down the leg.
Read the full guide - Lower Back
Lumbar Radiculopathy
Also called: pinched nerve in the lower back, sciatica, trapped nerve in the lower back, nerve pain down the leg
A pinched or inflamed nerve root in the lower back that sends sharp, burning, or electric pain, numbness, tingling, or weakness down the leg.
Read the full guide - Lower Back
Lumbar Foraminal Stenosis
Also called: narrowed nerve exit in the lower back, pinched nerve where it leaves the spine
A narrowing of the bony exit channel through which a lumbar nerve root leaves the spine, causing sharp, radiating leg pain, numbness, and sometimes weakness.
Read the full guide - Lower Back
Lumbar Lateral Recess Stenosis
A focal narrowing of the subarticular zone of the lumbar spine that compresses a traversing nerve root, producing leg pain, numbness, and sometimes weakness along a specific dermatomal pattern.
Read the full guide - Lower BackCan be a medical emergency
Cauda Equina Syndrome
Also called: cauda equina compression, nerve compression at the bottom of the spine
A spinal emergency caused by compression of the lumbar and sacral nerve roots, producing leg weakness, saddle numbness, and loss of bladder or bowel control that can become permanent without immediate treatment.
Read the full guide
Conditions that mimic spine pain
These are problems elsewhere in the body. They are covered in this library because they are commonly mistaken for a spinal cause, and telling them apart changes who you should be seeing.
Not sure what's causing your pain?
SpineSense walks you through a structured assessment built by spine surgeons, then explains what your symptoms and imaging actually mean.
Start a free assessment