There are cases of low back pain that have alarming causes, but it’s rare. Once in a while back pain is a warning sign of cancer, autoimmune disease, infection, or a handful of other scary culprits.7 Over the age of 55, about one in twenty cases turns out to be a fracture, and one in a hundred is more ominous.8 The further you are from 55, the better your odds.
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.
You can strain or tear one or more of your hip flexors when you make sudden movements such as changing directions while running or kicking. Sports and athletic activities where this is likely to occur include running, football, soccer, martial arts, dancing, and hockey. In everyday life, you can strain a hip flexor when you slip and fall, for example.
If the pain is still not managed adequately, short term use of opioids such as morphine may be useful.[73][13] These medications carry a risk of addiction, may have negative interactions with other drugs, and have a greater risk of side effects, including dizziness, nausea, and constipation.[13] The effect of long term use of opioids for lower back pain is unknown.[74] Opioid treatment for chronic low back pain increases the risk for lifetime illicit drug use.[75] Specialist groups advise against general long-term use of opioids for chronic low back pain.[13][76] As of 2016, the CDC has released a guideline for prescribed opioid use in the management of chronic pain.[77] It states that opioid use is not the preferred treatment when managing chronic pain due to the excessive risks involved. If prescribed, a person and their clinician should have a realistic plan to discontinue its use in the event that the risks outweigh the benefit.[77]
Low back pain (LBP) is a common disorder involving the muscles, nerves, and bones of the back.[4] Pain can vary from a dull constant ache to a sudden sharp feeling.[4] Low back pain may be classified by duration as acute (pain lasting less than 6 weeks), sub-chronic (6 to 12 weeks), or chronic (more than 12 weeks).[3] The condition may be further classified by the underlying cause as either mechanical, non-mechanical, or referred pain.[5] The symptoms of low back pain usually improve within a few weeks from the time they start, with 40–90% of people completely better by six weeks.[2]
