What can cause leg weakness?

Answer:
You can suffer from a leg weakness with either having sudden cramps , or having weak bones aat the knee joint.
Or not having enough muscle tone or low amounts of cartilage

Leg weakness can occur from
- sciatica
- bulging discs in lower back
- leprosy
- nerve palsy of leg (common peroneal nerve injury)
- diabetes

There are a plethora of causes depending on associated symptoms that one could have like back ache (bulging disc), tingling numbness(sciatica), elevated blood sugar (diabetes).
First answer by Lalithgeorge. Last edit by Gauresh Indulkar. Contributor trust: 1 [recommend contributor recommended]. Question popularity: 1 [recommend question].