
What are the causes of pain in the elbow joint?
I suddenly noticed significant pain in my arm joint upon waking up this morning. What could be the reason for this?

Common causes of pain in the elbow joint include:
1. Trauma: Such as joint sprains, fractures, or ligament injuries, which may cause local inflammatory reactions and increased nerve sensitivity, leading to pain.
2. Arthritis: Such as rheumatoid arthritis and rheumatic arthritis. These inflammatory diseases can affect the joint synovium, leading to joint inflammation and damage, thereby causing pain, swelling, and stiffness.
3. Muscle or tendon strain: Overuse or improper use of the arm muscles and tendons, such as lifting heavy objects or incorrect posture during exercise, can cause strains and result in pain.
4. Bursitis: Bursae are small fluid-filled sacs located around the joints that reduce friction between muscles and bones. When these sacs become inflamed, they can cause pain and swelling.
5. Fractures or hairline fractures: Even minor injuries can result in bone damage, especially in elderly individuals, as osteoporosis increases the risk of fractures.