Spinal stenosis often causes no symptoms. When symptoms do occur, they start slowly and get worse over time. Symptoms depend on which part of the spine is affected. In the lower back Spinal stenosis in the lower back can cause pain or cramping in one or both legs. This happens when you stand for a long time or when you walk. Symptoms get better when you bend forward or sit. Some people also have back pain. In the neck Spinal stenosis in the neck can cause: 
Numbness
Tingling or weakness in a hand, leg, foot or arm
Problems with walking and balance
Neck pain
Problems with the bowel or bladder
