Like any surgery, infections can develop after a successful breast implant. Most infections happen a few days or a week after the surgery. So be extremely careful during that time. Also remember that infections can develop any time after the surgery. Unlike infections on most surgeries, implants related infection is harder to treat because it is not part of the normal body tissues. If the infection doesn’t respond to antibiotics, the implants will have to be removed. Once the doctor solves the infection, another implants will need to be placed.
In rare cases, there is a life threatening condition, called toxic shock syndrome, can happen after a breast implant. Symptoms include sudden fever, vomiting, diarrhea, fainting, dizziness, and/or sunburn-like rash. You need to see your doctor immediately if you notice any of these.
Source: FDA