The pain can be localized absolutely anywhere in the back. Most often, painful sensations are perceived from the side, in the center of the back, along the spine, and sometimes even in the center of the spine itself. Often the painful area is limited to a specific area, or it spreads intensively throughout the back. Moreover, in the first case, a person understands exactly where his back hurts, how it hurts, and can also “describe” the boundaries of pain. In the second case, it is impossible to clearly determine the source of the pain, often a person does not even understand whether his back or, for example, kidneys hurts.
- Stitching pain in the sides of the back
The presence of a stabbing pain in the sides of the back may indicate that the inflammatory process develops either in the region of the kidneys or in the lateral parts of the back. At the same time, in the inflammatory process, most often the inflammation still affects the kidneys, and the pain simply gives off to the back area, radiates. A similar stabbing pain can develop with liver diseases (with hepatitis, hepatic and renal failure, cirrhosis). Similar sensations are typical for people with heart failure. 
If the pain rises higher, and is localized in the area of the shoulder blades, this may indicate the development of pneumonia (in the area of the shoulder blades there is a projection of the tops of the lungs). Stitching pain in the sides, in the upper back, may indicate a complication of sore throat, or this is noted with a herpes infection. Also, such pain can indicate inflammation or injury in the area of the upper limb girdle, shoulder blade, collarbone, and even neck. Such pain often occurs with a severe stage of torticollis, in which the sterno-subclavian, clavicular-mastoid muscles, and intercostal areas are involved in the inflammatory process. It can be sciatica, intercostal neuralgia, lumbodynia. 
- Stitching back pain on the right
In the event that stabbing pains in the back on the right are concerned, in almost 100% of cases there is an inflammatory process in the kidneys. At the same time, along the nerves that are involved in the inflammatory process, the pain radiates to the back, and it is not always possible to distinguish the source. 
However, this is far from the only cause of back pain. There can be many reasons, and each has their own. Pain can be a consequence of frequent stress, and the result of neuropsychic stress, and even a consequence of the development of autoimmune, infectious, inflammatory, processes. And even a sign of poisoning.
- Stitching back pain on the left
There can be many reasons why stabbing pain occurs in the left back. Often this is an injury, damage to muscles, spine, displacement of the vertebrae. The pathological process is usually based on hypothermia, or nervous disorders (involvement of nerves in the inflammatory process). This kind of pain is often observed in people prone to obesity, with metabolic disorders, with impaired vascular tone, blood pumping function. Sometimes a stabbing pain in the back on the left or on the right occurs against the background of vitamin deficiency, mineral deficiency, and intoxication. 
- Stitching pain in the lower back
In most cases, pain in the kidney area, urolithiasis, or the deposition of salts and sand in the urinary tract of the kidneys are taken for stabbing pain in the lower back. The cause may be a urinary tract infection that goes up and affects the kidneys. Often, pain develops against the background of general hypothermia of the body, or with the development of an infection. 
- Stitching pains in the chest leading to the back
There can be many reasons for the development of stabbing chest pains that gradually pass into the back. You need to see a doctor and undergo an examination, because without an appropriate examination it is impossible to determine the cause. Hypothermia, inflammation, muscle strain, displacement of the vertebrae, pinched nerve or muscle, intercostal neuralgia can become the cause of such transient, migratory pain. 
Often the pathological process affects the chest (it can be a disease of the abdominal organs - bronchitis, pneumonia, tracheobronchitis). Or it can be a disease of the back, spinal column, lower back. Often the cause is cardiac pathology: such pain can be a harbinger of myocardial infarction, it can indicate an attack of angina pectoris, cardiomyopathy, heart failure, it can be one of the symptoms of coronary artery disease - coronary heart disease, heart disease. Such a reaction can occur in people to stress, be a response to excessive physical or mental stress. There are cases in which the cause is an increased susceptibility of pain receptors, and even a violation of the basic neuroregulatory mechanisms, hormonal levels, increased sensitization of the body. This can be a harbinger of an impending anaphylactic shock. 
- Stitching pain in the back between the shoulder blades
The cause may be trauma to the scapula, shoulder girdle, cervical spine. In this case, stabbing pain occurs, which is felt in the back and between the shoulder blades. As a result of injury, muscle rupture, integument and membranes, pinching or damage to the nerve can occur, which causes stabbing pain in the back and between the shoulder blades. One of the reasons may be an intervertebral hernia, localized in the area of the shoulder blades, which is often accompanied by inflammation of the intervertebral and paravertebral muscles, impaired trophism, increased sensitivity. 
The nature of the pain
By the nature of the pain, one can also judge about those pathological phenomena that develop in the body. Thus, a sharp stabbing pain often indicates an acute inflammatory process. Dull, aching pain is a sign of chronic inflammation.
When the first signs of pain appear, the source of the pain must be identified. Acute stabbing back pain is often caused by an acute inflammatory process that affects either the back itself or other nearby structures. In this case, muscles and tissues are involved in the inflammatory process. The source is most often based on where the pain is most felt. It is imperative to be examined by a nephrologist if the source of the pain is unclear and presumably localized in the lower back. There is a risk that it may be an inflammation of the kidneys, urinary tract.
If you suddenly have a sharp stabbing pain in your back, this may indicate the development of an inflammatory process (acute), or an exacerbation of an already existing inflammation. It occurs mainly in spring and autumn, since it is during this period that the body is maximally weakened. Often exacerbations occur under the influence of excessive stress, overexertion, increased stress on the body, or incorrect distribution of the load on the back. In winter, such pain often indicates hypothermia, that you have a cold on your back or kidneys. Also, exacerbation often occurs from stress, neuropsychiatric stress.