How to Apply a Cast to a Broken Arm

This article was medically reviewed by Troy A. Miles, MD. Dr. Miles is an Orthopedic Surgeon specializing in Adult Joint Reconstruction in California. He received his MD from the Albert Einstein College of Medicine in 2010, followed by a residency at the Oregon Health & Science University and fellowship at the University of California, Davis. He is a Diplomat of the American Board of Orthopaedic Surgery and is a member of the American Association of Hip and Knee Surgeons, American Orthopaedic Association, American Association of Orthopaedic Surgery, and the North Pacific Orthopaedic Society.

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Experts agree that broken arms require immediate medical treatment, as the right treatment for you will depend on the place and severity of your break. If your arm is broken, you'll likely notice severe pain, swelling, bruising, an inability to turn your arm, or a misshapen arm. [1] X Trustworthy Source National Health Service (UK) Public healthcare system of the UK Go to source Research suggests that broken arms typically take a month or 2 to heal, and during that time you will likely need to keep your arm immobilized in a cast. [2] X Trustworthy Source National Health Service (UK) Public healthcare system of the UK Go to source Fortunately, your doctor can apply a cast to help your bone heal properly.