Given our sedentary lives, backpain is not uncommon. Here are some situations when it's a good idea to consult a doctor: If you feel numbness or irritation in your back, it could mean nerve irritation or damage. If the pain is accompanied by unnatural weight loss. If there is redness or swelling in the back. If you have problem controlling your bladder or bowel movement. If you also have a shooting pain down your legs or arms.