Golfer's elbow, also known as medial epicondylitis, is an overuse injury causing pain on the inner side of the elbow where forearm muscles attach. It results from repetitive motions like swinging a golf club or racket. Physiotherapy treatments include ultrasound, laser therapy, stretching and strengthening exercises to reduce pain and inflammation, improve range of motion and muscle strength, and prevent reinjury. Conservative treatments are usually tried first before considering corticosteroid injections or surgery. Proper form, rest, stretching, strengthening, and equipment choices can help prevent golfer's elbow.