The severity of streptococcal infection is related to the specific condition, the site of involvement, and whether it is treated in a timely manner, so it cannot be generalized, and it is recommended that the patient undergoes regular treatment in a timely manner. Streptococcus is a gram-positive coccus, and its symptoms are related to the site of involvement. Patients may have upper respiratory tract or skin infections, when streptococcal infection causes nephritis, hematuria, proteinuria, etc., and in severe cases, there may be oliguria, anuria and other manifestations of renal failure, but also nausea, vomiting, headache, fatigue, lumbago and other systemic manifestations. Streptococcal infection after active and effective treatment, such as timely selection of appropriate antimicrobial drugs, penicillin, lincomycin, etc., the general prognosis is good, the symptoms can be relieved. In contrast, patients with untimely treatment are usually more serious and can be complicated by serious diseases such as pneumonia and encephalitis, or even life-threatening. Patients with streptococcal infections should seek timely medical attention and strictly follow the doctor’s instructions for medication and treatment. It is recommended that patients be detected, diagnosed and treated early in order to improve the prognosis of the disease.