If most inner-thigh openers feel too easy (and your ankles and knees are injury-free), try Frog Pose. Get down on all fours, with palms on the floor and your knees on blankets or a mat (roll your mat lengthwise, like a tortilla, and place it under your knees for more comfort). Slowly widen your knees until you feel a comfortable stretch in your inner thighs, keeping the inside of each calf and foot in contact with the floor. Make sure to keep your ankles in line with your knees. Lower down to your forearms. Stay here for at least 30 seconds.
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]

Hip hikers (also known as the pelvic drop) are great exercises to get your gluteal muscles working in a weight bearing position. To do the exercise, stand sideways with one foot on a step and the other hanging off. Keeping both knees straight, lower down your pelvis on one side so your foot moves toward the floor. Both knees should remain straight; the motion should come from your hip joint. Once your pelvis is lowered down, slowly raise it back up to the starting position. Repeat the exercise for 10 repetitions.
Spinal laminectomy (also known as spinal decompression) is performed when spinal stenosis causes a narrowing of the spinal canal that causes pain, numbness, or weakness. During the procedure, the lamina or bony walls of the vertebrae, along with any bone spurs, are removed. The aim of the procedure is to open up the spinal column to remove pressure on the nerves.

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.
When we stand, the lower back is functioning to support the weight of the upper body. When we bend, extend, or rotate at the waist, the lower back is involved in the movement. Therefore, injury to the structures important for weight bearing, such as the bony spine, muscles, tendons, and ligaments, often can be detected when the body is standing erect or used in various movements.
Exercise therapy is effective in decreasing pain and improving function for those with chronic low back pain.[50] It also appears to reduce recurrence rates for as long as six months after the completion of program[61] and improves long-term function.[57] There is no evidence that one particular type of exercise therapy is more effective than another.[62] The Alexander technique appears useful for chronic back pain,[63] and there is tentative evidence to support the use of yoga.[64] Transcutaneous electrical nerve stimulation (TENS) has not been found to be effective in chronic low back pain.[65] Evidence for the use of shoe insoles as a treatment is inconclusive.[51] Peripheral nerve stimulation, a minimally-invasive procedure, may be useful in cases of chronic low back pain that do not respond to other measures, although the evidence supporting it is not conclusive, and it is not effective for pain that radiates into the leg.[66]

Great exercises and stretches that can be easily done throughout the day to strengthen and loosen my hip flexors. i have very tight hip flexors so it's very helpful for me knowing these exercises and stretches. For those that want more info about exercises and stretches for hip flexors, i recommend the "unlock your hip flexors". It is a program that will show you many more exercises and stretches you can do. So check it out here
Some of these red flags are much less red than others, especially depending on the circumstances. For instance, “weight loss” is common and often the sign of successful diet! (Well, at least temporarily successful, anyway. 😃) Obviously, if you know of a harmless reason why you have a red flag symptom, it isn’t really a red flag (duh!). But every single actual red flag — in combination with severe low back pain that’s been going on for several weeks — is definitely a good reason to get yourself checked out.