Impingement Syndrome: Early Rotator Cuff Problem
Impingement syndrome is often the first stage of rotator cuff issues. It occurs when the tendons of the rotator cuff or the biceps tendon become irritated or inflamed due to:

Repetitive overhead movements

Normal wear and tear from aging

This irritation can also affect the bursa, a fluid-filled sac that cushions the rotator cuff and the shoulder blade, helping tendons move smoothly.

The term "impingement" means the rotator cuff tendons are being pinched or squeezed between the upper arm bone (humerus) and the acromion (part of the shoulder blade). This squeezing causes inflammation and swelling of the tendons.

Treatment
Conservative measures:

Rest

Ice application

Anti-inflammatory medications

Physical therapy to improve shoulder mechanics and reduce inflammation

Surgery (if needed):
If symptoms persist despite conservative treatment, arthroscopic surgery may be performed to:

Increase the space for the rotator cuff tendons by removing part of the underside of the acromion

Remove inflamed bursal tissue to reduce irritation and allow smooth tendon movement