Lower Back Pain From Sitting Too Long? Here's What It Means and What to Do
Updated July 20261 minute read
Lower back pain that builds the longer you sit usually comes from sustained load on the discs and joints plus tightening hips and a relaxed core — not from a serious problem. The fix is rarely a "perfect" chair; it's movement. Standing and walking briefly every 30–45 minutes, varying your posture, and strengthening your core and hips typically resolve it. Persistent or leg-radiating pain deserves a PT assessment.
What this usually means
Most likely causes. Prolonged sitting loads the lumbar discs and lets supporting muscles switch off, so pain creeps in. Disc-related pain and general deconditioning are common contributors. Less common causes. If sitting triggers leg pain, numbness, or tingling, a disc may be irritating a nerve.
What you can try at home
The best "posture" is your next one — change positions often. Stand or walk for a minute every 30–45 minutes, alternate sitting positions, and set up your workstation so your screen is at eye level. Core and hip strengthening builds sitting tolerance.
When to see a physical therapist
If sitting pain limits work or persists despite movement breaks, a PT can find the driver and build tolerance.
Red flags — don't wait
Seek care for leg weakness, groin numbness, loss of bladder/bowel control, fever, or unexplained weight loss.
How a PT treats this
Treatment focuses on movement habits, workstation setup, and core and hip strengthening to make sitting comfortable.
Frequently asked questions
Sources (3)
- Qaseem A, et al. Noninvasive treatments for acute, subacute, and chronic low back pain: a clinical practice guideline from the American College of Physicians. Ann Intern Med. 2017. — PubMed
- George SZ, et al. Interventions for the management of acute and chronic low back pain: revision 2021. Clinical practice guideline. J Orthop Sports Phys Ther. 2021. — PubMed
- MedlinePlus: Low back pain - acute. — NIH/MedlinePlus
This article is for education only and isn't medical advice. Always talk to a licensed clinician about your specific situation.