Why is There an Indent in my Nostril when I Smile?

 The  nostril indention can be caused by  the a concave or inverted lower lateral cartilage on the affected side, and a active depressor septae ligament the tethers the tip downwards upon animation. Both of these can be addressed with a rhinoplasty procedure.

That little depression is known as the soft triangle of the nose and, as you note, it is more noticeable on one side than the other. Do not try to get it fixed. It is actually a desirable feature of a nicely shaped nose. Overall your nose looks quite nice so don't mess with it, you would be making a mistake.

Hi Miss Mex,

It appears that you may have an inverted left lower lateral nasal cartilage that is concave instead of the normal convex.  This would have to be confirmed on an actual physical examination.  If that is the case, and it bothers you aesthetically, it can be corrected by nasal surgery.  The offending piece of cartilage is excised, flipped, and then sutured back in place correcting the problem.  Choose your rhinoplasty surgeon most carefully.  Good luck and be well.

Dr. P