Sciatica refers to back pain caused by a problem with the sciatic nerve. This is a large nerve that runs from the lower back down the back of each leg. When something injures or puts pressure on the sciatic nerve, it can cause pain in the lower back that spreads to the hip, buttocks, and leg. Up to 90% of people recover from sciatica without surgery.
Stretching is your next move, but not just any stretches. "Before your workout, you want to go for dynamic stretches, or stretches that put the joint through a full range of motion," says Lefkowith. Moves like squats and lunges will get your muscles fired up (especially if you focus on squeezing your butt at the top of those squats), says Lefkowith.
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
The sciatic nerve is the largest and longest nerve in the body. It arises from the spinal cord as a collection of fibers from the lower vertebrae. This nerve is responsible for the sensation of the skin of the foot and entire lower leg except for a small area on the inner side. It also supplies muscles in the anterior, lateral and posterior compartments of the leg.
To do this stretch, sit on the floor with your legs about three or four feet apart, depending on how tall you are. Make sure your toes and knees are pointed straight up. Next, take a deep breath, and on the exhale, slowly fold your upper body forward. Rest your hands on your feet, legs, or the floor in front of you and hold this stretch for five deep breaths.

Even though it seems like your legs are moving forward and backward when you’re running, in reality, the femur (your thigh bone) both rotates and tilts in the hip socket, Kalika explains. It’s the hip adductors—most notably the gluteus medius—that keeps the femur sitting in the socket as designed. (The hip adductors are the muscles that move your legs inward.) Any weaknesses make the joint unstable, and can contribute to poor running mechanics, hip drop (when the pelvis drops to one side), too-narrow stances, and aggravated tissues throughout the entire body, Sauer says.
Most back pain is harmless – caused by sleeping in an awkward position, stretched muscles, overexertion, sitting down too long or falling on the ischial tuberosity (the bones of the butt that you sit on), or minor hip injuries caused by twisting a certain way during sports like volleyball. Many injuries arise simply from improper form during exercise, sports injuries, or strains.
The hip flexors are the muscles at the front of your hip. They’re responsible for several essential functions. Since they’re so often overlooked, we often forget to stretch them before exercising or engaging in rigorous activities. Tight hip flexors can also be a product of being sedentary. So, if you don’t lead an active lifestyle, or if you spend most of your day sitting at a desk, you’ll be susceptible to hip flexor tightness.
The hip flexor stretch has become a very popular stretch in the fitness and sports performance world, and rightly so considering how many people live their lives in anterior pelvic tilt.  However, this seems to be one of those stretches that I see a lot of people either performing incorrectly or too aggressively.  I talked about this in a recent Inner Circle webinar on 5 common stretches we probably shouldn’t be using, but I wanted to expand on the hip flexor stretch as I feel this is pretty important.
Irritable hip: What you need to know Irritable hip is a common cause of hip pain and limping in children before they reach puberty. It may happen after an injury or a viral infection, or because of poor blood flow. It usually gets better with rest within 2 weeks. Pain killers may help relieve symptoms. Those under 16 years should not use aspirin. Read now