Back
Not as much as most people think. Research hasn't found that slouching or one “bad” posture causes back pain on its own. Staying in any position for too long, being less active, poor sleep and stress seem to matter more. Moving often is more helpful than sitting perfectly straight.
Many of us grew up hearing “sit up straight or you'll hurt your back.” But studies that compare people with and without back pain haven't found a clear link between how someone usually sits or stands and whether they get back pain. Plenty of people with a rounded back have no pain, and plenty of people with “perfect” posture do.
Your spine is strong and built to bend. Slouching for a while is not damaging it. What can cause aches is holding the same position for a long time, whether that's slumped or upright, because the same tissues never get a break.
If a certain position reliably brings on your pain, it can still help to change it. Small adjustments to your chair, desk or car seat are reasonable, as long as you don't worry that every slouch is harming you.
See a doctor promptly if you have:
A physical therapist looks at how you move through your day, not just how you sit. They can help you find comfortable positions, build strength and fitness, and ease worry about posture so you can move more freely.
At ARI Physical Therapy in Bakersfield, every visit is one-on-one and in person with a licensed physical therapist, and our clinic director, Deepa Konnur, PT, MPT, OCS, is a board-certified Orthopedic Certified Specialist. We accept most private insurance plans and Medicare, and we have staff who speak Spanish and Hindi.
Read our full guide: Sciatica and back pain →
Ready to feel better?
Talk to a licensed physical therapist at ARI, one-on-one. Request an evaluation and we'll get back to you, usually within one business day.
This page is general information, not a diagnosis. If you have symptoms, a licensed clinician should evaluate you.
Clinically reviewed by Deepa Konnur, PT, MPT, OCS, board-certified Orthopedic Certified Specialist · Reviewed October 2026