Why does my shoulder hurt when doing pull-ups?
Why does shoulder pain occur during pull-ups? Shoulder pain during pull-ups is primarily attributed to excessive exercise intensity or improper force application during training, leading to strain of local soft tissues.

Additionally, incorrect movement patterns may also contribute. These errors cause overstretching of local muscles and fascia, resulting in fascial elongation. While such overstretching typically does not cause acute injury, significant external force—especially when combined with substantial body weight—can lead to localized tissue damage, including fascial tears and tendon injuries, all of which may result in shoulder pain following pull-ups.

In particular, rotator cuff injuries can easily be mistaken for adhesive capsulitis (frozen shoulder). If such symptoms arise, it is advisable to consult a hospital for magnetic resonance imaging (MRI) of the shoulder joint to accurately differentiate between adhesive capsulitis and rotator cuff injury.