Pain: Pain is a symptom triggered by the nervous system, causing uncomfortable sensations in the body. It can be temporary (acute) or lifelong (chronic). Acute pain is, for a short time, caused by damage to the tissues of the muscle, bone, or organs. Chronic pain lasts lifelong and can occur due to severe inflammation or tissue damage, such as osteoarthritis and rheumatoid arthritis.
Neuropathic pain: Neuropathic pain is caused by chronic progressive nerve disease, infection, or injury. A feeling of numbness and loss of sensations is common with neuropathic pain. Symptoms include spontaneous, untriggered pain, unpleasant feeling, shooting, burning or stabbing pain, difficulty resting or sleeping, and evoked pain (pain caused by events that are usually not painful).