What are these bloody/pimples on my nipples? (Photo)

These are sutures placed in the deep dermis that are supposed to dissolved.  Sometimes the can come to the surface and cause these pimples and openings.  They almost always heal on thier own.  Apply antibiotic ointment when they occur.  Once all the sutures either dissolve or come out, these will stop.

This sometimes happens with sutures.  It appears to be small stitch abscesses that have ruptures and opened up.  Keep them clean and with local wound care they should heal without much problem or scar.  If they create unsightly scar those areas could possibly be revised under local in the future.  Be sure to communicate these concerns with your surgeon.  Best wishes.

These "pimples" that you are experiencing are a result of the small abscesses from the underlying sutures. These are self limiting and with local wound care will eventually regress over time. You should however, follow up with your plastic surgeon to be evaluated.