How long do dissolving stitches take to dissolve from nipple area after Gynecomastia surgery??

It is difficult to respond to your question without knowing the type of sutures used. Please ask your surgeon.

This depends on the type of sutures used.  Some dissolve in days others take 4 months. Ask your surgeon.  

this is impossible to answer because we do not know what type of sutures were placed.  This question is best directed to your plastic surgeon.