Coccydynia is an inflammation of the bony area (tailbone or coccyx) located between the buttocks. Coccydynia is associated with pain and tenderness at the tip of the tailbone between the buttocks. Pain is often worsened by sitting. There are many causes of tailbone pain that can mimic coccydynia including: fracture, pilonidal cysts, infection, and sciatica. Treatment methods include medication and rest.

Pain on the outside of the hip is most commonly due to greater trochanteric bursitis. The greater trochanter is the protrusion where the thigh bone juts outward at the base of the neck (which connects the ball to the femur and is the site of hip stress fractures). A lubricating sac (or bursa) lies over the boney protrusion so that the surrounding muscles do not rub directly on the bone. The top region of the iliotibial (IT) band, known as the tensor fascia lata, is commonly involved in greater trochanteric bursitis.

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.
You're more likely to get a hip flexor injury if you've had one in the past, you don't warm up properly before engaging in athletic activity, your muscles are already tight or stiff, or your muscles are weak from being overused. If, while exercising, you try to do too much at once in too short an amount of time, you can also put yourself at risk for a hip flexor injury.
The hip is a common site of osteoarthritis. To help protect the hip joint from "wear and tear," it is important to strengthen the muscles that support it. Your hip also controls the position of your knee, and strengthening your hips may be one component of your rehab program for knee pain. Your physical therapist may also prescribe hip exercises after total hip replacement if you have a hip labrum tear or as part of your hip exercise program for hip pain.
There are many additional sources of pain, including claudication pain (from stenosis) myelopathic pain, neuropathic pain, deformity, tumors, infections, pain from inflammatory conditions (such as rheumatoid arthritis or ankylosing spondylitis), and pain that originates from another part of the body and presents in the lower back (such as kidney stones, or ulcerative colitis).
Herbal medicines, as a whole, are poorly supported by evidence.[90] The herbal treatments Devil's claw and white willow may reduce the number of individuals reporting high levels of pain; however, for those taking pain relievers, this difference is not significant.[17] Capsicum, in the form of either a gel or a plaster cast, has been found to reduce pain and increase function.[17]
^ Jump up to: a b c d e f g Hughes SP, Freemont AJ, Hukins DW, McGregor AH, Roberts S (October 2012). "The pathogenesis of degeneration of the intervertebral disc and emerging therapies in the management of back pain" (PDF). J Bone Joint Surg Br. 94 (10): 1298–304. doi:10.1302/0301-620X.94B10.28986. PMID 23015552. Archived from the original (PDF) on 4 October 2013. Retrieved 25 June 2013.
Emerging technologies such as X-rays gave physicians new diagnostic tools, revealing the intervertebral disc as a source for back pain in some cases. In 1938, orthopedic surgeon Joseph S. Barr reported on cases of disc-related sciatica improved or cured with back surgery.[100] As a result of this work, in the 1940s, the vertebral disc model of low back pain took over,[99] dominating the literature through the 1980s, aiding further by the rise of new imaging technologies such as CT and MRI.[100] The discussion subsided as research showed disc problems to be a relatively uncommon cause of the pain. Since then, physicians have come to realize that it is unlikely that a specific cause for low back pain can be identified in many cases and question the need to find one at all as most of the time symptoms resolve within 6 to 12 weeks regardless of treatment.[99]
^ Machado, GC; Maher, CG; Ferreira, PH; Pinheiro, MB; Lin, CW; Day, RO; McLachlan, AJ; Ferreira, ML (31 March 2015). "Efficacy and safety of paracetamol for spinal pain and osteoarthritis: systematic review and meta-analysis of randomised placebo controlled trials". BMJ (Clinical Research Ed.). 350: h1225. doi:10.1136/bmj.h1225. PMC 4381278. PMID 25828856.
To help you strengthen these important muscles, Miranda put together a list of exercises, below. They include dynamic warm-up moves, meant to activate your hip muscles and prep them for the bigger movements to come; functional moves that train basic movement patterns, like the squat, hip hinge, and lunge; functional plyometric exercises that train explosive power; and a few moves that get you moving in different planes of motion, or directions.
As the structure of the back is complex and the reporting of pain is subjective and affected by social factors, the diagnosis of low back pain is not straightforward.[5] While most low back pain is caused by muscle and joint problems, this cause must be separated from neurological problems, spinal tumors, fracture of the spine, and infections, among others.[3][1]
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.