Chronic pain is a type of pain that lasts for a longer period of time. According to the Institute of Medicine more than 100 million American adults suffer from chronic pain. Most pains comes and goes away but Chronic pain is a type of pain that won't go away, it can lasts three months or longer. There are some common causes of Chronic pain are back and neck injuries, musculoskeletal pain, Phantom limb pain (experienced by those who have had a limb amputated), shingles etc. To get a detailed overview about Chronic pain, it's types, causes, and treatments read this blog form Learnthedosage.