Belly button stitch came out. Any suggestions? (photos)

Patients with any questions or concerns about their early surgical recovery after a tummy tuck ( e.g. stitches popping out, etc) should contact their primary plastic surgeon ( the one that performed the surgery ) to determine the best and safest next step in management regarding that concern. 

From the pictures that you provided, your incision looks intact and you appear to have plenty of remaining sutures to prevent the incision from opening. You belly button does not look infected in these pictures. The minor redness that is visible looks to be related to the sutures. I predict that it will get better when the sutures are removed. Good luck!

Thank you for your question and providing photos. I do not believe this is going to cause you any problem. Most PS place sutures under the skin in addition to the skin sutures. Best of luck