![Reed bandages Hawkins](https://cdn.statically.io/img/static.wikia.nocookie.net/memoryalpha/images/7/79/Reed_bandages_Hawkins.jpg/revision/latest/scale-to-width-down/180?cb=20160116125529&path-prefix=en)
A bandage around Hawkins' arm
![Riker's forearm](https://cdn.statically.io/img/static.wikia.nocookie.net/memoryalpha/images/b/b8/Riker%27s_forearm.jpg/revision/latest/scale-to-width-down/180?cb=20060616221733&path-prefix=en)
A scan of a forearm
An arm was the upper extremity of a humanoid lifeform.
In 2153, MACO Corporal F. Hawkins' left arm was wounded by a Vulcan crewmember aboard the Seleya. Malcolm Reed later placed a bandage around it. (ENT: "Impulse")
In 2367, Doctor Beverly Crusher initially suspected child abuse after examining Jono and finding evidence of prior serious injuries, two previously fractured ribs, a broken arm, and a low-grade concussion, as well as possible neurological impairment. (TNG: "Suddenly Human")
A sling was a typical first aid treatment for a broken arm. (ENT: "Terra Prime"; TNG: "Who Watches The Watchers", "Relics"; DS9: "The Quickening", "Waltz")
An osteogenic stimulator can be used to treat a broken arm. (VOY: "Resolutions")
Riley Frazier had a prosthetic arm, produced by Orum. (VOY: "Unity")