An irritation or problem with any of these structures can cause lower back pain and/or pain that radiates or is referred to other parts of the body. Many lower back problems also cause back muscle spasms, which don't sound like much but can cause severe pain and disability. View Lower BackPain Videos. While lower back pain is extremely common, the symptoms and severity of lower back pain vary greatly.
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New York City (NYC), nickname Big Apple, located on the Atlantic coast at the mouth of the Hudson River, is probably the most famous city in the world... 8,550,000. 2. The City of Angels is the largest city in the state of California and the second most populous city in the United States. ...more. 3. Chicago (Illinois) The Windy City is the largest city in the state of Illinois, the city is located on the southwestern tip of Lake Michigan. 2,720,000. largest city in the state of Texas and the fourth most populous city in the United States.