Hi~~ Where did you read that? Wikepedia? Cause I tried to look that up and couldn't find that. I suspect that you are taking that out of context somehow, I have NEVER heard or read that, and I know that alot of people, including me, have thigh twitching on here. I think it's actually one of the most common twitches. My neuro did say to me that with als, the twitching tends to be in the thighs and shoulders, but that being said, that doesn't mean that if you have twitches there, you have als. That is like saying that if you have a headache, you have a brain tumor; you can have a headache as a symptom of a brain tumor, but of course common sense would tell you that if you have a headache you don't have a brain tumor. Read it over again, and try to see if you took it somehow out of context. Did a medical journal post that, or a person? I couldn't find anything saying that. Val