Why does my lower back hurt when I bend over?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Lower back pain when bending over is often caused by spine-related issues, such as disc problems, muscle strain, or the effects of repetitive vibration on the spine. These conditions can limit mobility, make everyday movements uncomfortable, and may worsen without proper attention.

Common causes include:

Herniated or bulging discs pressing on nearby nerves
Muscle or ligament strain from lifting, twisting, or poor posture
Degenerative disc disease related to aging or wear and tear
Facet joint issues that limit spinal flexibility

Because back pain has many possible causes—some minor, others requiring medical care—identifying the source early is key to relief and recovery. A quick, free, online symptom check can help you understand what may be behind your pain, what to do next, and whether it's time to see a doctor. It takes just a few minutes and could save you days of guessing.

Reviewed for medical accuracy: 07/15/2026

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Explanation

When you bend over, your lower back can hurt for a few reasons. One reason is the effect of vibrations on your spine. These vibrations, which can come from things like driving or using machinery, may lead to back pain over time.

Another reason could be related to the discs in your spine. As people age, these discs can wear down, a process called degeneration. This can cause pain, especially when you move in certain ways like bending over.

Lastly, how you move and assess your movement is important. If your body isn't moving correctly, it can cause strain on your back, leading to pain. If you're experiencing persistent back pain when bending over, try Ubie's free AI symptom checker to help identify potential causes and determine whether you should seek medical attention.

(References)

Pope MH, & Hansson TH. (1992). Vibration of the spine and low back pain. Clinical orthopaedics and related research, 1534724.
Kauppila LI, McAlindon T, Evans S, Wilson PW, Kiel D, & Felson DT. (1997). Disc degeneration/back pain and calcification of the .... Spine, 9253101.
Chang R, Smith A, Kent P, O'Sullivan P, Hancock M, & Campbell A. (2024). How Movement Is Assessed Matters. Changes in Forward .... The Journal of orthopaedic and sports physical therapy, 38113376.

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