Ans. Below are the normal reasons for shoulder pain-Shoulder disengagement: fractional or complete misalignment of the humeral head inside the shoulder attachment.SLAP tear: a tear in the labrum inside the shoulder joint Bursitis and tendonitis: irritation of bursae (liquid-filled, rubbing decreasing sacs) and ligaments. Frozen shoulder: hardening of the joint Muscle strains and tendon injuries: tears in the rotator sleeve connective tissues Osteoarthritis: irritation of the joint with wearing out of the inward joint ligament, prompting bone scouring on boneHazard factors incorporate dreary development and abuse (particularly overhead), helpless stance and ergonomics, disease or contamination influencing the shoulder, and mishaps.