Joint weakness in one leg
Weakness or pain in a single leg can also be a common sign of sciatica. As the sciatic nerve is the largest single nerve in your body, a doctor could easily pinpoint it as a possible problem in those people with these signs. Keep in mind that the weakness would happen at any point in the sciatic nerve, starting from the lower spine to the leg and foot. When the sciatic nerve gets compressed or pinched at any point, nerve function will become compromised. As a result, you might have a weakness, pricking, numbness, spasms, or tingling in a single leg. [4]
