Pain is a sensation of uneasiness, discomfort and uncomfortable, which is caused due to any physical damage, injury, trauma and muscle injury. Pain can create lots of problems in your life if it persists for long duration. According to severity and duration, pain can be classified into two main categories like acute pain and chronic pain. Pain involves a number of factors like physical and psychological.
Physical factors of pain involve injury, trauma, accidents and dislocation of bones.
Emotional factors of pain include stress, tension, fear and anger.