Can back problems cause leg pain?
Generally speaking, whether low back problems can cause leg pain depends on the specific type and severity of the lumbar condition. If discomfort occurs, timely medical consultation is recommended. Detailed analysis is as follows:

If the lumbar condition involves disorders such as lumbar disc herniation or lumbar spinal stenosis, and the condition is relatively severe, the protruding intervertebral disc or overgrown tissue may compress the nerve roots that control the legs, potentially causing leg pain. The pain is often radiating and may be accompanied by numbness or weakness in the leg. Some patients may also experience limited leg movement, and the pain may worsen or ease with changes in posture.
If the lumbar issue is merely mild lumbar muscle strain or muscle spasms caused by cold exposure, without nerve root compression, leg pain usually does not occur. Symptoms are mostly localized to the lower back, manifesting as soreness and stiffness, which may vary with activity or rest, while no significant discomfort is felt in the legs.
When experiencing low back discomfort, it's important to rest adequately and avoid prolonged bending, sitting, or lifting heavy objects to reduce strain on the lower back. If leg pain occurs simultaneously, prompt medical evaluation is necessary to determine the underlying cause through imaging tests. Avoid blind massage or self-medication. After diagnosis, follow medical advice for treatment to prevent worsening of the condition.