Supraspinatus tendonitis is a common cause of shoulder impingement syndrome. The tendon slides through the subacromial space, making it prone to excessive friction which results in inflammation

Supraspinatus tendonitis is a common cause of shoulder impingement syndrome. The tendon slides through the subacromial space, making it prone to excessive friction which results in inflammation

Original article and pictures take https://shoulder-pain-explained.com site