My left knee started to hurt last week. It happend before.

来源: 于 2014-03-24 13:45:18 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

I know it is because of too much exercise ( walking, dancing too much ). Tear & wear of the knee is something that we have to deal with as we age.