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 located in east-central Canada. Ontario is bordered by the James Bay, Hudson Bay, Lake Superior, Lake Ontario, the United States to the south, Quebec to the east, and Manitoba to the west.