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 Canada's leading manufacturing province, accounting for 52% of the total national manufacturing shipments in 2004. Ontario's largest trading partner is the American state of Michigan. As of April 2012, Moody's bond-rating agency rated Ontario debt at AA2/stable, while S&P rated it AA-.