Gram-positive cocci are a large group of cocci that are pathogenic to humans and animals. Cocci can cause purulent inflammation and are mainly considered to be produced by trauma, contact, and fecal-oral infections. Gram-positive cocci mainly include Staphylococcus aureus, S. pneumoniae, enterococci, etc. Different groups of bacteria have different survival conditions. 1. Staphylococcus aureus: It is widely distributed in the air, soil, objects and human body surface. When traumatized, skin breakage, failure to disinfect the skin in time or contacting objects infected by Staphylococcus aureus will lead to Staphylococcus aureus infection, so the trauma should be kept clean as much as possible. 2. Streptococcus pneumoniae: usually resides in the nasal cavity of the human body, most of them are not pathogenic or weak pathogenicity, only a small number of strong pathogenicity, when the body’s resistance to decline and other factors to the respiratory tract abnormalities or injuries can be caused by infections, resulting in lobar pneumonia, bronchitis, etc., should be avoided to avoid the rain and cold, and exercise to increase the resistance of the body to avoid infections. 3. Enterococci: part of the normal flora of the human intestinal tract, under normal circumstances usually reside in the intestinal tract, toxicity is not strong, only in the host tissue colonization and resistance to the body’s immune defense mechanism, can lead to infection. It is recommended that if a bacterial infection occurs, it is important to go to the hospital in a timely manner, under the guidance of a physician for targeted treatment.