21 yrs old my nose is wide when I smile and my nostrils are asymmetrical. I want them to be symmetrical. Options?

Your concerns are very common. The nose can be improved by adding refinement and definition to the tip. Keep in mind that your desired nasal shape is helpful in order to communicate with the surgeon your desires, but surgery must be performed within a patient's anatomical limitations. We must also aim to keep the nose in harmony with the rest of the facial structure. The best way to proceed would be an in-person consultation with a rhinoplasty specialist to review your concerns in detail and discuss the types of changes you would like to see.
Be sure to see an expert who specializes in rhinoplasty and facial aesthetic procedures.
All the best,

hello thank you for your question and provided information as well..based on the photos shown, to get the type of nose that is in the example photos as a base you must have another type of nose more elongated and with curvature in the dorsal part of the bone.but in your case the ideal is to consult in person by a certified plastic surgeon to see your case and evaluate which technique would be ideal in your case.

Hello and thank you for your question. Based on your
photograph, you may benefit from a tip refining rhinoplasty. Your surgeon can
accomplish this by trimming, suturing, and reshaping the cartilage in your
lower nose.  Make
sure you specifically look at before and after pictures of real patients
who have had this surgery performed by your surgeon and not just a computer
animation system. 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 base of your nose
is wide and your projection is deficient. 
Also, your nose is inclining to the side and you may have a septal
abnormality as well.  The tip is bulbous
and I recommend an open rhinoplasty to refine your tip, increase tip projection
and decrease the width of the base of your nose.  Best Wishes,Gary Horndeski, M.D.

Your nose could be improved with rhinoplasty, which would give permanent improvements in symmetry, shape and nostrils. You can bring these pictures that you think would be flattering to your face and these can be discussed. When you meet with a facial plastic surgeon, he or she will consider your nose in balance with your other features and can over the cost of the procedure. I hope this helps.

I would recommend starting with a consultation with a board certified facial plastic surgeon that specializes in rhinoplasty surgery to discuss if rhinoplasty can address your concerns. 
I would recommend writing down the following questions before scheduling your consultation:
1. Are you unhappy with the tip of your nose? 
2. Do you feel that your nose is too wide? 
3. Do you want to make your nostrils smaller in appearance? 
4. Are you looking to decrease the general size of your nose?
I hope some of these questions will help you pinpoint what it is that you don't like about your nose.  Cost will vary due to various factors like anesthesia fees, facilities fees, etc. I wish you the best as you research your options when scheduling a rhinoplasty consultation.
Sincerely,
Philip J. Miller, MD, FACS Double Board Certified Facial Plastic Surgeon

 It's impossible to obtain the noses in the wish pics because of the differences in thickness of the skin present in your nose. Thick skin prevents refinement in the nose. There are some improvements that can be accomplished in narrowing the bridge line and narrowing the tip  with  a rhinoplasty procedure. An alar- plasty procedure can accomplish narrowing wide nostrils. The nostrils  will never be perfectly symmetrical, and there is no perfect nose. It's important have very realistic expectations about what can and cannot be accomplished with your nose with a rhinoplasty procedure. Make appointments with three of the busiest  rhinoplasty surgeons in your local area.

Improving the
nostril width and refining the tip are frequent requests of patients wanting
nasal refinement. It is possible to improve the cosmetic appearance of the tip
alone without altering the rest of the nose in some patients. Whether the
optimal option in your particular situation would be a tip rhinoplasty alone or
an artistically performed natural appearing full rhinoplasty would best be
determined at a consultation. Either procedure can be performed with a closed
or open approach.
Following the advice from a surgeon on this or any other website who proposes
to tell you exactly what to do based on limited 2 dimensional photos without
examining you, physically feeling the tissue, assessing your desired outcome,
taking a full medical history, and discussing the pros and cons of the
operative procedure would not be in your best interest. I would suggest you
find a plastic surgeon with extensive nasal surgery experience who is certified
by the American Board of Plastic Surgery and ideally a member of the American
Society for Aesthetic Plastic Surgery (ASAPS) or a facial plastic surgeon (otolaryngologist)
that you trust and are comfortable with. You should discuss your concerns with
that surgeon in person.
Robert Singer, MD FACS
La Jolla,California