Does everyone have a visible indentation/groove between their lower lateral cartilage? How would it be changed?

Hello and thank you for your question.  The
best advice you can receive is from an in-person consultation.  This is caused by a gap in the lower lateral cartilage which can be fixed with cartilage suturing.   Make sure you specifically look
at before and after pictures of real patients who have had this surgery
performed by your surgeon and evaluate their results.   The most
important aspect is to find a surgeon you are comfortable with. I recommend
that you seek consultation with a qualified board-certified plastic surgeon who
can evaluate you in person.
Best wishes and good luck.
Richard G. Reish, M.D.  FACS
Harvard-trained plastic surgeon

The groove you mention is a gap between your cartilages and it does vary person to person.  At times with age it becomes more noticeable as the skin and fat overlying it thins further.  The case on the link below shows an example of this, especially looking at the 3/4 view and bottom view.

Thank you for your question. It would be helpful to see photos of your face so we can provide some comments specific to you. Please note that everyone has some slight asymmetry in their facial features - even after surgery. Please feel free to consult with your board certified facial plastic surgeon to learn more about rhinoplasty and an attractive nose.
Best wishes,

Great question. Everyone's nasal tip is made by two separate cartilages called the lower lateral cartilages. The lower lateral cartilages meet at midline in the nasal tip. Depending on the thickness of the nasal tip and the strength and particular shape of the lower lateral cartilages, the gap between the nasal cartilages might or might not be noticeable from the outside. For example, the gap might show more in people with larger and stronger cartilages and thinner. If the indentation is very noticeable, it can be softened or reduced during rhinoplasty. This is most commonly something I do when I am also trying to refine or refine the nasal tip by using suture to bring them together. If the indentation is bothering you, you might consider seeing a rhinoplasty surgeon to learn what it would take to change that indentation. Hope this helps. Good luck!

 The groove that your referring to can be more prominent in patients who have a combination of thick  lower lateral cartilages and thin skin. The groove is created by the cleavage between the two lower lateral cartilages that compose the nasal tip. Suture techniques applied to the lower lateral cartilages or a morselized cartilage graft placed in the cleavage can accomplish significant improvement