During pregnancy a woman’s abdominals get stretched out. There is no way to avoid this with a growing baby. Muscles work most effectively when they are at an optimal length. Not too short and not too long. The lengthening that happens during pregnancy puts the abdominal muscles at a decreased advantage for working. This decreases the amount of support they provide for spinal stability.  
Note: Exercises that strengthen the hip flexors also involve contracting (shortening) these muscles. So if tight hip flexors are a problem for you, it might be wise to limit how many direct hip-strengthening exercises you perform. These exercises are more geared toward people who have been told they have weak hip flexors that need strengthening or are looking for targeted exercises to build more power and stamina in the hip flexors.
A vertebral compression fracture in the spine occurs when one or more vertebra become smashed or compressed. This injury is typical in individuals with osteoporosis and the elderly and can be caused by severe trauma to the back as well, such as in a car accident or following a fall. Symptoms include a sudden popping sound in the back and pain in the back. Treatment may include rest, wearing a back brace, or procedures such as vertebroplasty.
The hip is a common site of osteoarthritis. To help protect the hip joint from "wear and tear," it is important to strengthen the muscles that support it. Your hip also controls the position of your knee, and strengthening your hips may be one component of your rehab program for knee pain. Your physical therapist may also prescribe hip exercises after total hip replacement if you have a hip labrum tear or as part of your hip exercise program for hip pain.

Often people go to the doctor seeking help for hip pain. Sometimes, people try to treat it themselves. They are convinced there is something wrong with their hip and the treatments begin. However, one thing is for sure, hip pain is not always as it appears. Hip pain can be a result of a problem in the hip joint itself. However, it can also be a result of a back problem or a soft tissue problem around the hip region.


Kidneys — The kidneys are a matched pair. One painful kidney can cause back pain on one side or the other. Kidney pain can feel like back pain, and may occur on only one side. It is usually quite lateral, and just barely low enough to qualify as “low” back pain. However, when kidney stones descend through the ureters, they can cause (terrible) pain in the low back. Kidney stone pain is often so severe and develops so rapidly that it isn’t mistaken for a back pain problem.
When lifting weights, it's important to find out how much weight is appropriate for you. Pariser recommends visiting your physical therapist to discuss how to safely lift weights without injuring your hip. “The lightest weight on the machines might be five or 10 pounds,” Pariser says. “That might be too hard for some people.” A good rule of thumb: Always use a weight that's light enough for you to lift comfortably.
Your doctor may order imaging tests, such as an MRI, to get more information about the location and cause of the irritated nerve. An MRI can show the alignment of vertebral disks, ligaments, and muscles. A CT scan using contrast dye can also provide a useful picture of the spinal cord and nerves. Determining the cause of sciatica can help guide the course of treatment. X-rays can help identify bony abnormalities but can't detect nerve problems.
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.
Both types of problems are frequently helped by anti-inflammatory medications particularly in mild to moderate situations. Some types of analgesics can be used intermittently as well. It's important to realize that both problems can be helped significantly by weight loss, proper forms of exercise and conditioning. In fact, back pain can become chronic without a commitment to the appropriate exercises necessary to stabilize and strengthen the spine. Epidural blocks (corticosteroids are injected into the canal of the low back to reduce inflammation and pain) can help several types of back disorders. Using a cane when walking can help both hip and back pain.

Kneel on your mat with thighs perpendicular to the floor and tops of of your feet facing down. Place a yoga block between your feet. Bring your inner knees together. Slide your feet apart so they are slightly wider than your hips, and press the tops of your feet evenly into the mat. Slowly sit down on the yoga block. Use your hands to turn the top of your thighs inward. Allow the backs of your hands to rest on your thighs. Hold for at least 30 seconds.
Flexors are flexible muscle tissues that help a person stretch and move. The muscles that help you lift your knee toward your body and bend at the waist are known as the hip flexors. These muscles are located around the upper and inner things and pelvic region. Keeping the hip flexors strong is particularly important for active people and athletes.
A diagnostic SI joint injection may be performed to confirm the cause of pain. The SI joint is injected with a local anesthetic and corticosteroid medication. The injection is given using X-ray fluoroscopy to ensure accurate needle placement in the SI joint. Your pain level is evaluated before and 20-30 minutes after injection, and monitored over the next week. Sacroiliac joint involvement is confirmed if your pain level decreases by more than 75%. If your pain level does not change after the injection, it is unlikely that the SI joint is the cause of your low back pain.
The hip joint is designed to withstand a fair amount of wear and tear, but it’s not indestructible. For example, when you walk, a cushion of cartilage helps prevent friction as the hip bone moves in its socket. With age and use, this cartilage can wear down or become damaged, or the hip bone itself can be fractured during a fall. In fact, more than 300,000 adults over 65 are hospitalized for hip fractures each year, according to the Agency for Healthcare Research and Quality.
In the vast majority of patients with low back pain, symptoms can be attributed to nonspecific mechanical factors. However, in a much smaller percentage of patients, the cause of back pain may be something more serious, such as cancer, cauda equina syndrome, spinal infection, spinal compression fractures, spinal stress fractures, ankylosing spondylitis, or aneurysm.
Some back pain is caused from a "ruptured disc". This pain is often experienced in the gluteal region of the body. Many people call this the "hip" region although it is not usually indicative of a hip joint problem. This is actually behind the hip, an important anatomic thought when considering hip pain, rather than in the hip itself. A condition related to degeneration of the lower back creating narrowing of the spinal canal or adjacent areas is called spinal stenosis and frequently causes pain in the hip region. The history of stenosis has to be compared with hip joint pain. Spinal stenosis can cause leg pain while walking as well as fatigue in the legs even when rising from a chair. Stenosis pain is relieved with sitting and will re-occur when walking is resumed.

THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.
While sciatica is healing, try to remain active. Motion can actually help reduce inflammation and pain. A physical therapist can show you how to gently stretch the hamstring and lower back. Practicing tai chi or yoga can help stabilize the affected area and strengthen your core. Depending on your medical condition, certain exercises may not be recommended. Your doctor may also recommend taking short walks.
Of course, you know what it feels like to have a tight muscle. But tight hips aren't just uncomfortable—they can lead to all sorts of other aches and pains, especially in the lower back. "People focus on the hips and say their hips are tight, but we don't always think about the fact that the lower back connects to our legs at the hip," Charlee Atkins, C.S.C.S., instructor at Soul Annex in New York City and creator of Le Stretch class, tells SELF. Tight hip flexors make it harder for your pelvis to rotate properly, which can cause your lower back to overcompensate, "and this can be a setup for lower-back injury," Teo Mendez, M.D., an orthopedic surgeon at NY Orthopedics who focuses on operative and non-operative management of sports-related injuries, musculoskeletal injuries, and arthritis, tells SELF.
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