1. Acute Pain
Acute Pain is a pain that lasts less than 3 to 6 months, or pain directly related to tissue damage. This is the type of pain caused by a paper cut or needle prick. Other examples of acute pain are like labour pains, the pain is acute and identifiable.
Acute low back pain is defined as a pain present for up to six weeks. It could feel like an aching, stabbing, burning, or dull pain. The actual intensity of this type of low back pain could range from mild to severe and could fluctuate or move to other areas of your body like your hip or thigh area.
2. Chronic Pain
Chronic pain describes pain that lasts more than three to six months, or beyond the point of tissue healing. Chronic pain is usually less directly related to identifiable tissue damage and structural problems. Chronic back pain without a clearly determined cause, failed back surgery syndrome (continued pain after the surgery has completely healed), and fibromyalgia are all examples of chronic pain. Chronic pain is much less well understood than acute pain.
Chronic pain can take many forms, but is often described as a pain with an identifiable cause, such as an injury. Certain structural spine conditions, including degenerative disc disease, spinal stenosis, and spondylolisthesis, can cause ongoing pain until they are successfully treated.
3. Neuropathic Pain
Neuropathic pain could be placed in the chronic pain category, but it has a different feel than chronic musculoskeletal pain. The pain is often described as severe, sharp, lightning-like, stabbing, burning, or cold. The individual may also experience ongoing numbness, tingling, or weakness. Pain may be felt along the nerve path from the spine down to the arms/hands or legs/feet.
It is thought that the pain is caused by damage or disease affecting the somatosensory nervous system. Neuropathic pain may be associated with abnormal sensations called dysesthesia or pain from normally non-painful stimuli (allodynia). It may have continuous and/or episodic (paroxysmal) components.