Backache due to stress may be caused by fatigue or general stiffness due to remaining in a fixed position for extended periods of time, such as sitting at a desk at work for long hours. Stress may make a person more likely to remain tense and create muscular tension and is a significant risk factor for backache.
There are some serious conditions not due to stress that cause back pain and which warrant immediate medical evaluation. For example, a person experiencing back pain following trauma from a fall or vehicle accident should seek medical care. Strenuous lifting may cause a fracture of the spine. A tumor or infection may cause back pain. Persons with a history of cancer, fever, chills,weight loss, recent infection, pain that worsens on standing and severe night time pain should also see a physician promptly. Weakness, radiating pain down the buttocks or legs, loss of bladder or bowel control, or numbness should be evaluated by a physician.
Generalized lower backache is a condition that occurs mainly in people 20 to 40 years of age. Pain can be in the back, buttocks and upper thighs. Most lower back pain will recover spontaneously in four weeks. Usually, there is pain and/or stiffness for 12 to 36 hours after an injury.