Can a closed rhinoplasty reduce nostril size?

In most cases, other parts of the nose (especially the tip) needs to be addressed in conjunction with the nostril in order to keep the appropriate balance. Nostril narrowing tilts the nasal tip back a little bit, and most people who want the nostrils narrowed are already slightly overturned, so extra steps need to be taken to prevent this. Photos would be helpful.

The nostrils are typically reduced in size with an incision along the alar crease.  This can be
performed with either an open or closed rhinoplasty.

A closed rhinoplasty deals with the tip and bump on your nose. To make your nostrils smaller you make incisions at the base of your nose and remove a small amount of your nostril skin. 

Nostril size reduction with closed rhinoplasty? Yes but you may need other parts of your nose done to keep a balance of the parts.

Changing the nostril size (making the nostril bigger or smaller) is a procedure that can be done alone under local anesthesia or combined with a full rhinoplasty (closed or open) under general anesthesia. 
Reducing the size of the nostril is done by making an incision along the nostril base where a small incision is made to wedge out a small portion of the rim. The rim is then sutured down to the base where the nostril was previously connected to the cheek/lip area. The incision is well hidden along that junction.
When you talk about a closed versus open rhinoplasty, this is referring to the approach made to change the overall shape and appearance of the nose. An open approach uses a small incision along the columella (middle portion of the bottom of the nose) which when healed is difficult to see and practically imperceptible. In comparison, a closed approach hides the incision along the inside of the top of the nostril.

Hello 6am6oom,The answer is a little more involved than a standard yes or no answer because nostrils size and shape can be changed with either open or closed approaches. This is because nostrils are changed by making incisions at the base of the nose (alar base modification).Michael M. Kim, MD

Nostril size requires making incisions at the base of the nostril to reduce both the width and amount of flaring of the nostrils. These incisions are in a separate location but can be done at the same time as a closed rhinoplasty. 

No, an alar-plasty  reduces nostril size.  This procedure is performed under local anesthesia and involves re moving a small wedge of skin base of the nostrils  to narrow them.  A closed rhinoplasty procedure involves making incisions on the inside of the nose to alter the shape of the nose.

That depends on the problem..  For example, A closed rhinoplasty which involves a large reduction in nose size can change the shape of the nostrils, ie, changing from an elongated look to a more rounded look.. Reducing nostril size however for most issues involves incisions with removal of tissue,  repositioning  and reshaping.  
Armand Simone, MD  FACS  New York, NY

Thank you for the question and nostril size reduction is accomplished by small exclusions of skin along the side of the ala and is usually part of a closed or open rhinoplasty where neededDr Corbin