Here is why you should calm down and stop worrying about that indentation in your outer thigh muscle.

I’m going to tell you why seeing an indent in your outer thigh is actually a GOOD sign.

I’m a certified personal trainer, a fitness expert and writer, very knowledgeable of human anatomy and the musculoskeletal system.

By far, and I mean VERY FAR, the most likely explanation for an indent in your outer thigh muscle is NORMAL HUMAN ANATOMY. We are not perfectly smooth and flat under our skin.

You can prove the harmlessness of the thigh indent in an instant by doing a Google-image search for “bodybuilders’ quads.” You’ll see a range of muscle-chiseling, including some unsightly (too much muscle).

But I’m directing you here because you’ll see a ton of quad or thigh indents, like the one below.

Look at the outer right thigh of this physique athlete.

Frankly, I think that the “dent” is very attractive.

Do you see YOUR indent in the above photo? I know the indent you’re speaking of, because it’s usually the first one to show when a person’s bodyfat gets low enough and they already have some tone to their thigh muscles.

Note the dark “groove” between the rectus femoris and vastus lateralis. That’s the “dent” you see in your thigh. It’s harmless! Source:

This is formed by the groove between the vastus lateralis muscle and the rectus femoris muscle. The groove IS the indent. See below.

Depending on your bodyfat level, you can make the indent in your outer thigh disappear (or rather, get hidden) by gaining fat.

Eat up, gorge and put on fat, and this additional fat will conceal the indent or make it less noticeable.

Guaranteed.The less bodyfat with toned muscles, the more visible will be the separation between the vastus lateralis and rectus femoris. Less bodyfat is a desirable feature!

Physique athletes (not just bulky bodybuilders) LOVE to see this indentation in their quads.

 It’s a sign of reduced bodyfat.

The lingo in the muscle-building community is cut, definition or crack. But you need NOT be a physique enthusiast to “get” an indent in your outer thigh.

People with flabby, mushy muscles but also low bodyfat will probably not see this groove.

The people most likely to notice it, who are not deliberately trying to get it, are people who exercise or play sports (and therefore have toned leg muscles), and have a low bodyfat level in that area.

When I say “low,” I don’t mean as low as a physique athlete posing on stage, but “low” as in: There’s really no excess fat there, no plumpness kind of fat.

If your weight fluctuates or you’re a yo-yo dieter, take notice of what these weight fluctuations do to the indent. The heavier you are (with fat), the less visible the indent.

People may panic if they notice that the indent comes and goes, but this coming-and going parallels weight fluctuations.

Other types of athletes also have this indent in their outer thigh, and the fact that athletes have this should reassure you that it’s benign, harmless. Do some googling of images for soccer players, tennis players, any athlete where there are generous views of their outer thighs, and you’ll see lots of indentations—just like yours!