Olecranon bursitis is an inflammation of the bursa located over the tip of the elbow bone. It is usually caused by repeated minor trauma from leaning or resting on the elbow. Symptoms include swelling at the back of the elbow that may be painful with pressure or movement. Physical therapy focuses on reducing pain and swelling, improving range of motion and strength through exercises and modalities like ice and compression. Resting the elbow and avoiding aggravating activities is also recommended to prevent recurrence.