6 doctors weighed in:

I have sudden onset low back pain with radiation of pain down the leg, no injury. What's causing this?

6 doctors weighed in
Dr. Michael Bolesta
Orthopedic Surgery
4 doctors agree

In brief: Disk perhaps

A common cause would be a disk herniation (rupture, slip) in the low back.
It can also be caused by nerve irritation by bone spurs in the low back. Less commonly, disk injury without herniation can also cause this type of symptoms. Often such problems will improve with time. Seek help if you have problems emptying your bladder or you have weakness in the leg muscles.

In brief: Disk perhaps

A common cause would be a disk herniation (rupture, slip) in the low back.
It can also be caused by nerve irritation by bone spurs in the low back. Less commonly, disk injury without herniation can also cause this type of symptoms. Often such problems will improve with time. Seek help if you have problems emptying your bladder or you have weakness in the leg muscles.
Dr. Michael Bolesta
Dr. Michael Bolesta
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Dr. Robert Wallach
Physical & Rehabilitation Medicine
1 doctor agrees

In brief: Pinched nerve

People often develop a pinched nerve in their back or neck for no reason.
They often wake up with the symptoms and this is usually due to a bulging or herniated disc and is more common in younger folks. See a doctor if the pain is severe or you have weakness/numbness or bowel/bladder problems. You may need MRI if not better soon.

In brief: Pinched nerve

People often develop a pinched nerve in their back or neck for no reason.
They often wake up with the symptoms and this is usually due to a bulging or herniated disc and is more common in younger folks. See a doctor if the pain is severe or you have weakness/numbness or bowel/bladder problems. You may need MRI if not better soon.
Dr. Robert Wallach
Dr. Robert Wallach
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