I have spinal stenosis and I am having bi lateral hamstring tightness/pain. What levels can contribute to these symptoms?

Sciatic nerve-tibial. Lumbar spine stenosis (narrowing) usually affects all structures below the site of spinal cord constriction. The hamstrings are innervated by a branch (ant. Tibial) of the sciatic nerve (l4, l5, s1, s2, (racepinephrine) s3 origin) the word ham originally referred to the fat and muscle behind the knee. String refers to tendons. The 3 muscles of the posterior thigh: semitendinosus, semimembranosus, biceps femoris.

Related Questions

I have spinal stenosis and I am having bi lateral hamstring tightness/pain. What levels can contribute to these symptoms?

All the lumbar ones. Since all the nerves to the legs pass through the upper lumbar levels, these areas if stenosis present, can give you symptoms just like the lower levels when involved.
L4-S1. It's usually L5 &/or s1 nerve roots although hamstring tightness could be due to pars fracture as well.