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Published on: 8/18/2026
What Could Be the Reason I Can't Bend or Straighten My Elbow?
Elbow stiffness—difficulty bending or straightening your arm—is often caused by a condition known as stiff elbow. It commonly develops after an injury, surgery, or inflammation, when scar tissue, joint tightness, or extra bone growth restricts normal motion.
Key causes of a stiff elbow include:
- Prior fracture or dislocation
- Post-surgical scarring
- Arthritis or joint inflammation
- Heterotopic ossification (extra bone formation)
Left untreated, stiffness can worsen and interfere with daily tasks like eating, dressing, or lifting. Early evaluation often leads to better outcomes, whether through physical therapy, medication, or in some cases, a procedure to restore range of motion.
Because elbow stiffness can stem from many underlying issues, identifying the likely cause is an important first step. Taking a free, instant, online symptom check can help you understand what may be driving your symptoms and guide you toward the right next steps—saving you time, reducing uncertainty, and helping you have a more informed conversation with a healthcare provider.
Reviewed for medical accuracy: 07/14/2026
What brings you in today?
Explanation
One common reason you might have trouble moving your elbow is due to a stiff elbow. A stiff elbow happens when tissues around the joint become tight or scarred. Often, this can occur after an injury or surgery, when the body heals by forming scar tissue. Sometimes, extra bone can form in the soft tissues, a process known as heterotopic ossification, which makes it hard for the elbow to move normally. In other cases, arthritis or inflammation of the joint can also lead to a stiff elbow. The research shows that these issues can make the bones appear to "stick" together, leading to difficulties in bending or straightening the elbow. Often, doctors will recommend imaging tests to see exactly what is causing the problem. With this information, they can plan a course of treatment, which may include physical therapy to improve the range of motion, medications to reduce inflammation, or in some cases, surgery to remove the scar tissue or extra bone. If you're experiencing elbow stiffness or difficulty moving your joint, try our free AI symptom checker to help identify potential causes and determine when to seek medical care.
(References)
Siemensma MF, van der Windt AE, van Es EM, Colaris JW, Eygendaal D. Management of the stiff elbow: a literature review. EFORT Open Rev. 2023 May 9;8(5):351-360. doi: 10.1530/EOR-23-0039. PMID: 37158372; PMCID: PMC10233805.
Nandi S, Maschke S, Evans PJ, Lawton JN. The stiff elbow. Hand (N Y). 2009 Dec;4(4):368-79. doi: 10.1007/s11552-009-9181-z. Epub 2009 Apr 7. PMID: 19350328; PMCID: PMC2787214.
Mittal R. Posttraumatic stiff elbow. Indian J Orthop. 2017 Jan-Feb;51(1):4-13. doi: 10.4103/0019-5413.197514. PMID: 28216745; PMCID: PMC5296847.
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