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.
Although some of us are familiar with a pinched nerve, which is associated with sciatic-like pain in the leg, irritation or inflammation of nerves in the low back region can also cause a sensation in the upper leg or hip region. It is important to realize there are many things that can go wrong in the spine. Remember, sciatica is not a diagnosis but, instead, a symptom of an underlying problem. It is possible to feel back-related pain in the hip region and upper leg as well. It depends on the nerves involved and ultimately the actual diagnosis. Back pain or hip pain is not a diagnosis but simply an explanation of the area of pain. Symptoms are correlated with physical examination and confirmed through x-rays and similar tests.
You’ve heard the saying: it’s all in the hips, but for many of us, our hips – or more precisely, our hip flexors – are tight, stiff and inflexible. If you’re an office worker you can probably thank sitting down at your desk 8 or more hours a day for your tight hip flexors. Habitual sitting causes your hip flexors to tighten and shorten – adjustable standing desks, anyone?
Grade III (severe): A complete tear in your muscle that causes severe pain and swelling and you can't bear weight on that leg, making it difficult to walk. You've also lost more than 50 percent of your muscle function. These injuries are less common and may need surgery to repair the torn muscle. They can take several months or more to completely heal.