Article in English: Infection is the most common complication that develops from having surgery.  Contact your doctor immediately if you think your incision is becoming infected.  Symptoms of infection include a temperature of 101°F (38.3°C) or higher, nausea and vomiting, severe pain, a new redness at the incision site, tenderness, a feeling of warmth to the touch, drainage that has an odor or is green or yellow in color, and new swelling around the area of the incision.  Research suggests that as many as 300,000 people that have surgery each year in the United States will develop an infection. And, sadly, about 10,000 of those people with die from that infection. Some characteristics and situations make people more likely to develop an infection, or to have their incision re-open, than others. Some risk factors include being obese, having diabetes or a weakened immune system, malnutrition, taking corticosteroids, or smoking. General steps you can take at home to help prevent infection include washing your hands thoroughly and often and always using clean supplies during dressing changes and after showering to pat the area dry.  Always wash your hands after using the bathroom, handling garbage, touching pets, handling dirty laundry, touching anything that has been outside, and after handling soiled wound dressing materials.  Take caution to advise family members and visitors to wash their hands before coming into contact with the person that had the surgery.  Stop smoking at least two weeks prior to the surgery if possible, though four to six weeks is preferable. Smoking slows down the healing process, depriving the healing tissues of oxygen and potentially causing infection.

Summary in Vietnamese:
Nhận biết dấu hiệu nhiễm trùng. Nhận biết nguy cơ nhiễm trùng cao. Lưu ý phòng ngừa liên quan đến vệ sinh cơ bản.