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.
1. New York City. New York is the largest cities in the United States and the center of the New York Metropolitan Area, one of the most populous metropolitan areas in the world. New York exerts a significant impact upon global commerce, finance, media, art, fashion, research, technology, education, and entertainment.
It is spread out over 599.6 square miles and has a population of 2,099,451 as of 2010. Houston is regarded as the largest city in the Southern United States and has the highest population of any other city in Texas. It is ranked as the 4th most populous city in the entire country. 8. Oklahoma City, Oklahoma