Normal and can be trimmed by your surgeon
Most commonly the sutures used are either chromic or fast-absorbing chromic. The body recognizes it as a foreign protein, mounts an inflammatory reaction and the portion actually within the tissues dissolves and allows the suture to fall out. Depending on what material it is, this could take three to four weeks versus two to three weeks respectively. There is no harm or threat by having them hang slightly out of your nose, but if it is bothersome to you they can be trimmed away quite readily on a followup visit with your surgeon.
I hope this has been helpful.
Robert D. Wilcox, MD
Dissolvable stitches and how they fall out
Dissolvable stitches are commonly used in septoplasty and rhinoplasty along the middle wall of the nose.
Dissolvable or Absorbable suture means the stitch will hold its strength for a designated period of time before breaking down. The stitch does not simply melt away. As it starts to dissolve, the string breaks at the weakest/thinnest points and the remaining string hangs down or sticks out. It will continue to breakdown on its own.
If an end is sticking out of the nose or bothering you, I would go back to your surgeon's office, so they can take a look and trim it for you. You could cause some serious damage by pulling on loose ends or start an infection by sticking unclean scissors up your nose. Safety comes first!
Dissolvable stitches after septoplasty/rhinoplasty
In general, the vast majority of surgeons use absorbable (dissolvable) stitches inside the nose following a septoplasty or rhinoplasty. Depending on the type of suture used, these typically "dissolve" over the course of 7-14 days, but can vary from patient to patient. Occasionally, these sutures can be trimmed or removed if they start to cause any discomfort or irritation. I would recommend seeing your surgeon if you have any concerns. Good luck!
Thank you for your question. Its likely that the suture you are referring to is the one used to close the septoplasty portion of your operation. These are almost universally dissolvable. Having said that, the ends are normally trimmed short enough that they don't stick out of the nostril. If they are bothering you, contact your surgeon so they can take a look. Sometimes when I have patients that are bothered by the dissolvable internal sutures, I either trim them or take them out once they are no longer needed.
It is hard to determine what type of sutures were used during your procedure since no photos are submitted. However, if you do have dissolvable sutures they start to dissolve around 6-8 weeks post surgery. I would consult with your PS to ensure that in fact you do not have any other suture that needs to be removed.