You’d think so. But consider this story of a motorcycle accident: many years ago, a friend hit a car that had pulled out from a side street. He flew over the car & landed on his head. Bystanders showed their ignorance of spinal fracture by, yikes, carelessly moving him. In fact, his thoracic spine was significantly fractured … yet the hospital actually refused to do an X-ray because he had no obvious symptoms of a spinal fracture. Incredible! The next day, a horrified orthopedic surgeon ordered an X-ray immediately, confirming the fracture & quite possibly saved him from paralysis.
Tight hip flexors can result in lower back pain, hip pain and injury.  A lot of strain is put on those muscles during activities that involve sprinting and kicking.  For example, runners are more prone to hip flexor injuries because of the small, repetitive movement during running.   But even if you’re not an athlete, hip flexor injuries can occur during everyday activities (for instance, slipping and falling or running to catch a bus).  When those tight muscles are suddenly stretched beyond what they are accustomed to, you might also experience pain in the upper groin region, typically where the hip meets the pelvis.   
The pain of back pain almost always makes it seem worse than it is. The most worrisome causes of back pain rarely cause severe pain, and many common problems (like slipped discs) are usually much less serious than people fear. Only about 1% of back pain is ominous, and even then it’s often still treatable. Most of the 1% are due to cancer, autoimmune disease, or spinal cord damage.
The bones of the hip are supported by specific muscles. The strongest muscle in the body is actually one of the main flexors of the hip, it is called the iliopsoas muscle. It has two attachments to the inner part of the hip as well as the lower part of the back. This muscle is involved in iliopsoas tendinitis, iliopsoas bursitis, and is one of the most common causes of muscle pain that causes hip pain. The tendons attach the muscles to the bones and the ligaments attach bone to bone. Areas that are often susceptible to increased pressure are the tendons or the muscles attached to the bone, so that is another source of pain in iliopsoas tendinitis. The bursa are pockets of fluid that also protect the top part of the bone to prevent pressure on the bone. There are about 160 bursa in the body, and when they get irritated, it can develop into bursitis.
^ Jump up to: a b Chou R, Qaseem A, Owens DK, Shekelle P, Clinical Guidelines Committee of the American College of Physicians (1 February 2011). "Diagnostic imaging for low back pain: advice for high-value health care from the American College of Physicians". Annals of Internal Medicine. 154 (3): 181–9. doi:10.7326/0003-4819-154-3-201102010-00008. PMID 21282698.
There are a few most common causes of hip pain. The first thing to distinguish is to identify which pain is coming from the hip, as opposed to some other source. So there are four causes of hip pain, and the pain can come from muscles, ligaments, tendons, and within the joint itself. But those types of pain present in different ways. So those are the most important distinguishing factors to find out if the hip actually is the cause of the pain.
Most low back pain is acute, or short term, and lasts a few days to a few weeks. It tends to resolve on its own with self-care and there is no residual loss of function. The majority of acute low back pain is mechanical in nature, meaning that there is a disruption in the way the components of the back (the spine, muscle, intervertebral discs, and nerves) fit together and move.
Just because your hip flexor region feels sore doesn’t necessarily mean the muscles there are tight — in fact, they might need strengthening. This is where that sports science debate we mentioned earlier comes into play. It’s important to identify whether you’re tight or if the muscles are weak. Again, the Thomas Test will help you identify if you’re maybe stretching something that actually needs strengthening.
From a physical therapist’s perspective, these are excellent exercises for lower back pain (LBP) resulting from muscular tightness or stiff joints. However, LBP can also be caused by bulging (or “herniated”) discs, pinched nerves, and the like. If your LBP worsens (or radiates into your leg) upon attempting these or any other low back exercises, you should seek medical attention. Physical therapists are musculoskeletal experts that are able to properly evaluate and treat your back pain symptoms. And, according to a recently passed law in the state of Michigan, a physician referral is no longer necessary to seek treatment from a physical therapist. So, if you are experiencing LBP that is not improving…#getPT!
Physician specialties that evaluate and treat low back pain range from generalists to subspecialists.These specialties include emergency medicine physicians, general medicine, family medicine, internal medicine, gynecology, spine surgeons (orthopaedics and neurosurgery), rheumatology, pain management, and physiatry. Other health care providers for low back pain include physical therapists, chiropractors, massage therapists, psychologists, and acupuncturists.

In both younger and older patients, vertebral fractures take weeks to heal with rest and pain relievers. Compression fractures of vertebrae associated with osteoporosis can also be treated with a procedure called vertebroplasty or kyphoplasty, which can help to reduce pain. In this procedure, a balloon is inflated in the compressed vertebra, often returning some of its lost height. Subsequently, a "cement" (methymethacrylate) is injected into the balloon and remains to retain the structure and height of the body of the vertebra. Pain is relieved as the height of the collapsed vertebra is restored.
×