India, Sept. 17 -- Back pain is one of the most common health complaints and is usually linked to strain, poor posture, or lifestyle habits. However, experts caution that in some cases, it could point to something more serious. HT Lifestyle has reached out to experts to know the possible hidden causes of persistent back pain, including when it may signal underlying conditions such as lung cancer. (Also read: Oncologist says 'men over 50' should never ignore these early warning signs of prostate cancer )

"Back pain is a day-to-day complaint often invariably linked to heavy lifting, posture issues or ageing, mattress issues, which are usually relieved with OTC pain killers, muscle relaxants, but when it persists, then you need to think. It...