Inflammatory shoulder Pain can be the cause of shoulder pain with less pain and fairly good range of motion during the day. It usually causes more pain at night and will have painful range of motion at night as well. Inflammatory shoulder pain is usually caused by the following conditions:
1. Polymyalgia Rheumatica
2. Seronegative Arthritis
3. Psoriatic Arthritis
4. Rheumatoid Arthritis
5. Spondyloarthropathy
6. Lyme disease
7. Crystal Diseases such as Milwaukee Shoulder