Stitches come out 4 years post op? (Photo)

This depends on what type of suture was used during your breast reduction surgery - permanent or absorbable suture. Permanent sutures can come out after a period of time after surgery, sometimes even years later. It is possible a permanent suture was used during your surgery, and it has started to make its way to the surface of your skin. By now, all your tissues have fully healed so this will not result in any changes to your breast shape.

Absorbable sutures should have dissolved by now. If permanent sutures were used, it's not common but possible that they are surfacing. A return visit to your surgeon would be indicated. He or she would know what type or sutures were used, and if necessary, they can be removed in the office.

Hello and thank you for your question.
It is possible for a suture to make its way to the surface. Contact your surgeon to have this looked at and taken care of. Best wishes!