As you might imagine, the “hip flexors” are muscles that flex your hips. Flexion of the hip is easy to understand.  If you lay on your back and bring your knee to your chest, you are flexing your hip.  Every time you walk, run, squat, kick a ball, or do about anything that involves moving your thigh, you are putting your hip into at least some degree of flexion.

Although there are many muscles that are considered to be “flexors” of the hip, the two muscles that are most commonly thought of as “The Hip Flexors” are the Illicacus and Psoas (often referred to as one muscle — the illiopsoas).

Although the illiosposas is the muscle mos commonly associated with the Hip Flexor family, it is certainly not the only one.  Some of the most powerful muscles of the front thigh are considered to be Hip Flexors as well.  These include the powerful quadriceps muscle (rectus femoris below), the TENSOR FASCIA LATA (on the outside of the hip area), and the sartorius. 


Hip Flexor Tendinosis


In the picture above, I want you to notice that groin muscles (adductors of the thigh) as well as the Tensor Fascia Latae are also considered to be in the “Hip Flexor” family.  PULLED MUSCLES and TENDINOPATHIES are both common in this area.  Although they are in a somewhat “precarious” place to treat, we make do. 

To maintain as much modesty as is humanly possible, I typically have the patient wear some loose athletic shorts that can be moved around easily (sometimes a swimsuit bottom works well), and we cover the area (except the small spot that I am working on) with towels. 


Hip Flexor Fascia



As you are learning, Tendinopathies of the “Groin” or “Hip Flexor” region are common.  To truly understand all aspects of Tendinosis (including treatment), please click on the Tendon menu at the top right of the page.  Also realize that many of the problems in the “groin” area are due to FASCIAL ADHESIONS.  To read testimonials from folks just like you, visit our TESTIMONIAL PAGE.  Or you can read another page on HIP FLEXOR TENDINOSIS.


  1. George Read

    I have read several of your websites and the stretching pages. Very informative. I am so tight the exercises would be impossible. I have been exercising for about 3 months and am getting no more flexibility in psoas, adductors, etc. Try to pull knees to chest every day – no closer. Do I do your stretches as well as possible and hope to find more flexibility as weeks go by? Many thanks-

    • Hello George,

      Please realize that for the most part, my STRETCHING PAGES are not meant to be stretching protocols for health or flexibility. Instead, they are designed for people who have undergone our Scar Tissue Remodeling Therapy. Although that might be something you need, for overall flexibility you would be better off with yoga or something similar.

      Dr. Russ

    • Hello George,

      Remember that the stretches on my site are not geared for flexibility. They are meant to help specific people who have gone through Tissue Remodeling. Ever thought of trying some Hot Yoga. I would possibly think about diet as well (Anti-Inflammation Diet / Gluten Free).

      Dr. Russ

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