The clinical symptoms of viral and bacterial colds are very similar, and the specific methods to distinguish between these two types of colds are as follows: 1. Distinguish from the secretions, the phenomenon of pus sputum is mostly bacterial infections leading to colds, while the sputum of viral respiratory infections is non-purulent. 2. Distinguish from the white blood cell count, usually bacterial infections, the patient’s routine blood neutrophils and total white blood cells will be elevated, while viral infections, total white blood cells are normal or low. 3. 3. other symptoms, usually bacterial upper respiratory tract infections, patients with sore throat symptoms are more obvious, while viral infections will appear more runny nose, and may also appear conjunctival congestion, diarrhea and other symptoms. 4. time of onset, usually bacterial infections caused by the cold, the onset may be slow, may also be more rapid, systemic symptoms The reaction is more obvious, the fever is not obvious at the beginning, and the condition worsens after 2-3 days, while the onset of viral infection is more acute.