Breast reduction: does this look infected? (photos)

While it is not possible to make a definitive diagnosis based on photographs alone, it does not appear that you have an obvious infection. Rather the appearance is consistent with a wound healing problem and probably associated with an ischemic injury, i.e. a blood supply/circulation problem. Although you may not currently have an infection, the open wound does put you at risk for developing one. It is therefore imperative that you remain in close contact with your surgeon. 

Thank you for your pictures and questions. While the wound can appear scary, it does not appear infected. Rather, it appears that you had some blood flow issues to the skin along the incision and there was some death of the skin and opening of the incision. This can sometimes happen with breast reduction surgery. It can usually be managed with local wound care and will go on to heal and leave a widened scar. Follow the instructions of your plastic surgeon and see them for frequent follow up to make sure everything is going according to plan. Best of luck!

It appears that your wound is not healing well and the edges separated.  The cream your surgeon prescribed should help to prevent an infection while it heals. This may take several weeks and will leave a wide scar, which will likely need a scar revision.