There are many causes of hip joint pain. Some hip pain is temporary, while other hip pain can be long-standing or chronic. Causes of hip pain include arthritis, inflammatory and noninflammatory arthritis, fracture, sprain, infectious arthritis (septic arthritis), avascular necrosis, Gaucher's disease, sciatica, muscle strain, iliotibial band syndrome (IT band syndrome), and hematoma.
Low back pain may be classified based on the signs and symptoms. Diffuse pain that does not change in response to particular movements, and is localized to the lower back without radiating beyond the buttocks, is classified as nonspecific, the most common classification.[5] Pain that radiates down the leg below the knee, is located on one side (in the case of disc herniation), or is on both sides (in spinal stenosis), and changes in severity in response to certain positions or maneuvers is radicular, making up 7% of cases.[5] Pain that is accompanied by red flags such as trauma, fever, a history of cancer or significant muscle weakness may indicate a more serious underlying problem and is classified as needing urgent or specialized attention.[5]
Vertebroplasty and kyphoplasty are minimally invasive treatments to repair compression fractures of the vertebrae caused by osteoporosis. Vertebroplasty uses three-dimensional imaging to assist in guiding a fine needle through the skin into the vertebral body, the largest part of the vertebrae. A glue-like bone cement is then injected into the vertebral body space, which quickly hardens to stabilize and strengthen the bone and provide pain relief. In kyphoplasty, prior to injecting the bone cement, a special balloon is inserted and gently inflated to restore height to the vertebral structure and reduce spinal deformity.
The story of actor Andy Whitfield is a disturbing and educational example of a case that met these conditions — for sure the first two, and probably the third as well if we knew the details. Whitfield was the star of the hit TV show Spartacus (which is worthwhile, but rated very, very R17). The first sign of the cancer that killed him in 2011 was steadily worsening back pain. It’s always hard to diagnose a cancer that starts this way, but Whitfield was in the middle of intense physical training to look the part of history’s most famous gladiator. Back pain didn’t seem unusual at first, and some other symptoms may have been obscured. Weight loss could have even seemed like a training victory at first! It was many long months before he was diagnosed — not until the back pain was severe and constant. A scan finally revealed a large tumour pressing against his spine.
An intervertebral disc has a gelatinous core surrounded by a fibrous ring.[32] When in its normal, uninjured state, most of the disc is not served by either the circulatory or nervous systems – blood and nerves only run to the outside of the disc.[32] Specialized cells that can survive without direct blood supply are in the inside of the disc.[32] Over time, the discs lose flexibility and the ability to absorb physical forces.[25] This decreased ability to handle physical forces increases stresses on other parts of the spine, causing the ligaments of the spine to thicken and bony growths to develop on the vertebrae.[25] As a result, there is less space through which the spinal cord and nerve roots may pass.[25] When a disc degenerates as a result of injury or disease, the makeup of a disc changes: blood vessels and nerves may grow into its interior and/or herniated disc material can push directly on a nerve root.[32] Any of these changes may result in back pain.[32]
Chou R, Qaseem A, Snow V, Casey D, Cross JT Jr, Shekelle P, Owens DK, Clinical Efficacy Assessment Subcommittee of the American College of Physicians, American College of Physicians, American Pain Society Low Back Pain Guidelines Panel (Oct 2, 2007). "Diagnosis and treatment of low back pain: a joint clinical practice guideline from the American College of Physicians and the American Pain Society". Annals of Internal Medicine. 147 (7): 478–91. doi:10.7326/0003-4819-147-7-200710020-00006. PMID 17909209.
The diagnosis of low back pain involves a review of the history of the illness and underlying medical conditions as well as a physical examination. It is essential that a complete story of the back pain be reviewed including injury history, aggravating and alleviating conditions, associated symptoms (fever, numbness, tingling, incontinence, etc.), as well as the duration and progression of symptoms. Aside from routine abdomen and extremity evaluations, rectal and pelvic examinations may eventually be required as well. Further tests for diagnosis of low back pain can be required including blood and urine tests, plain film X-ray tests, CAT scanning, MRI scanning, bone scanning, and tests of the nerves such as electromyograms (EMG) and nerve conduction velocities (NCV).
In this study, one patient with sciatica was sent for ten MRIs, which produced 49 distinct “findings,” 16 of them unique, none of which occurred in all ten reports. On average, each radiologist made about a dozen errors, seeing one or two things that weren’t there and missing about ten things that were. Yikes. Read a more detailed and informal description of this study.
First and foremost, stop slouching. One of the most common causes of low back pain is poor sitting posture. The strain on the back while sitting in a slouched position can cause excessive pressure on the joints, muscles, and discs, causing pain. Learn to sit with correct posture and maintain that posture at all times to help decrease or eliminate your low back pain. Also be sure your workspace is set up properly at home and at work.
^ Jump up to: a b c d e f Qaseem, A; Wilt, TJ; McLean, RM; Forciea, MA; Clinical Guidelines Committee of the American College of, Physicians. (4 April 2017). "Noninvasive Treatments for Acute, Subacute, and Chronic Low Back Pain: A Clinical Practice Guideline From the American College of Physicians". Annals of Internal Medicine. 166 (7): 514–530. doi:10.7326/M16-2367. PMID 28192789.
Congenital bone conditions: Congenital causes (existing from birth) of low back pain include scoliosis and spina bifida. Scoliosis is a sideways (lateral) curvature of the spine that can be caused when one lower extremity is shorter than the other (functional scoliosis) or because of an abnormal architecture of the spine (structural scoliosis). Children who are significantly affected by structural scoliosis may require treatment with bracing and/or surgery to the spine. Adults infrequently are treated surgically but often benefit by support bracing. Spina bifida is a birth defect in the bony vertebral arch over the spinal canal, often with absence of the spinous process. This birth defect most commonly affects the lowest lumbar vertebra and the top of the sacrum. Occasionally, there are abnormal tufts of hair on the skin of the involved area. Spina bifida can be a minor bony abnormality without symptoms. However, the condition can also be accompanied by serious nervous abnormalities of the lower extremities. 
Strengthening exercises, beyond general daily activities, are not advised for acute low back pain, but may be an effective way to speed recovery from chronic or subacute low back pain. Maintaining and building muscle strength is particularly important for persons with skeletal irregularities. Health care providers can provide a list of beneficial exercises that will help improve coordination and develop proper posture and muscle balance. Evidence supports short- and long-term benefits of yoga to ease chronic low back pain.
Two types of strength-training moves that may benefit the lower back are flexion and extension exercises. In flexion exercises, you bend forward to stretch the muscles of the back and hips. In extension exercises, you bend backward to develop the muscles that support the spine. One example is doing leg lifts while lying on your stomach. Depending on the cause of your back pain, there are some exercises you should not do. If you have back pain, make sure to talk to your doctor about what exercises are safe for you.
