Is butterfly back a disease?

Winged scapula is generally a medical condition, also known as scapular winging, and it is advisable to actively prevent it in daily life. The specific analysis is as follows:

Under normal circumstances, the human scapula closely adheres to the chest wall, primarily due to the coordinated contraction of the serratus anterior and trapezius muscles. However, if these muscles become paralyzed, the scapula may lose the muscular forces that hold it against the chest. This can cause the scapula to rotate abnormally and protrude outward during arm movement, especially when spinal traction is lost, resulting in a deformity resembling butterfly wings—known as winged scapula—which is considered a physiological defect.

Once this condition occurs, patients are advised to seek active treatment to prevent disease progression that could lead to an inability to raise the arm above the head, thereby significantly affecting daily activities.