Back pain after a long shift: look beyond ‘perfect posture’

For a few shifts, note what you were doing when the ache began: standing still, sitting, bending, lifting, or getting home. Write down where it hurts, whether pain travels into a leg, and what changes when you move. A pattern can help you explain the problem to a clinician; it cannot prove that work is the cause.

There is no one posture everyone must hold. NHS guidance challenges the idea of a universally ‘correct’ posture. That does not mean every working position is harmless: NIOSH identifies heavy lifting, repeated bending and twisting, and long static positions as possible workplace risks. The WHO also notes that high physical stress at work can contribute to low back pain. The question is how much strain the task demands, how often, and for how long.

Choose a change you can actually make. Could frequently used stock move closer to the counter? Could you alternate a standing task with one that lets you sit or walk briefly? Could an awkward or heavy lift be shared? See whether that change makes the next few shifts easier, and tell a clinician what you tried if the pain continues.

Not everyone controls their breaks or the way a workplace is arranged. If the task itself forces the same painful movement all day, this is not a failure to ‘sit properly’. Ask a supervisor about changing the task where you can. Workplace design matters as much as personal habits.

For uncomplicated new back pain, evidence favours staying reasonably active over prolonged bed rest, though the benefit can be small. That is not a reason to force a heavy lift or push through worsening pain. If pain is getting worse, keeps you from usual work, or has not improved after a few weeks, arrange a clinical assessment. Bring your notes about the shift.

Get urgent medical help for new weakness or numbness in both legs, numbness around the genitals or anus, or a new change in bladder or bowel control. Back pain after a serious accident or with chest pain also needs immediate assessment. When it is safe to take your time, our back-pain guide can help you organise what to tell a clinician; it cannot diagnose the cause.