Causes of back pain in the lower back and how to treat it Low back pain is a common symptom in today's civilised society. It mostly affects middle-aged and young adults of both genders. People who sit for long periods of time without getting any exercise or who bear heavy loads on a daily basis are at risk of developing this condition. We have yet to meet someone who has not experienced back pain at some point in their lives. Low back pain can be caused by anything from muscle strain to spinal cancer, so it's important to pay attention to it. The pain is felt in the lumbar and sacral regions, and it can spread to other parts of the body.