Although medical technology is improving all the time, some pain is very complicated. It may involve so many factors that we will never be able to find the precise cause of it accurately with machines, or make it show up in any tests. However, not knowing the cause of the pain does not mean it is not a very real problem. Chronic pain and the related emotions can affect relationships with family and friends. These feelings are difficult, but they are also a part of the natural ups and downs in life. Attacks of low back pain are usually of sudden onset. Some 80 percent of the victims had a relief of pain within two weeks but 10 percent were still in pain five months later. Even the brief episodes tend to recur and may become more frequent and prolonged. People with pain experience setbacks for many reasons – and sometimes for no obvious reason at all. People experiencing persistent pain have had it alleviated with a PRP Injection treatment.