Shoulder Injuries
Shoulder pain, weakness, instability, or limited motion that may be related to military lifting, falls, weapons handling, training, or repetitive use.
Pain & Musculoskeletal- What causes shoulder instability?MedlinePlusMay 2026
Your shoulder joint is unstable because the ball of your upper arm bone is larger than the socket that holds it. Muscles, tendons, and ligaments normally keep your shoulder stable, but if these structures are weak or damaged, your shoulder can become unstable and easily injured.
- Why do I have pain in my shoulder?MedlinePlusMay 2026
Shoulder pain can come from many different injuries like sprains, strains, tendinitis, bursitis, torn rotator cuffs, dislocations, or arthritis. Your doctor will examine you and may do imaging tests to figure out exactly what's causing your pain.
- Will shoulder injuries affect other parts of my body?MedlinePlusMay 2026
Shoulder injuries usually affect mainly your shoulder and upper arm, but severe injuries or nerve damage could cause weakness or numbness that spreads down your arm and hand. Most shoulder injuries stay localized to the shoulder area.
- How does a torn rotator cuff happen?MedlinePlusMay 2026
A torn rotator cuff happens when the muscles and tendons that hold your shoulder in place get stretched or torn, usually from overuse, a fall, or a direct injury. This can happen suddenly or develop slowly over time from repetitive activities.
- Is frozen shoulder common?MedlinePlusMay 2026
Frozen shoulder is a real condition where your shoulder becomes stiff and painful, making it hard to move, but it's not the most common shoulder problem. It usually develops gradually and can improve with physical therapy and time.