Pain behind the Knees â Causes, Risk Factors and Treatment. An injury or blow to the back of the leg due to a fall or some other accident may lead to considerable pain in the posterior knee region. A sprain may lead to considerable pain, that may be accompanied by redness and swelling.
Ontario is a Province in Canada. There are no US states by that name. There is Ontario California stateside. Valerie Lee.
Ontario is also the nationâs wealthiest province, having a substantial share of the countryâs natural resources and its most mature and diversified industrial economy. It is at once Canadaâs economic pacemaker and a major force in national politics.