COVID-19 infection, namely novel coronavirus infection, can cause respiratory symptoms, digestive symptoms, eye symptoms, nervous system symptoms and skin manifestations. Specific symptoms are usually related to many factors such as one's own physique.

1. Respiratory symptoms: novel coronavirus easily involves the respiratory tract and lungs of patients. Due to inflammatory reaction, the typical symptoms are mainly low fever and dry cough, accompanied by muscle weakness. Some patients may have symptoms of nasal congestion and runny nose, accompanied by sore throat, and the sense of smell and taste may also decrease;

2. Symptoms of digestive system: novel coronavirus invades human body, which may induce gastrointestinal dysfunction. Usually there will be loss of appetite, nausea and vomiting, accompanied by abdominal pain and diarrhea. Diarrhea is common in general, and even leads to gastrointestinal bleeding in severe cases;

3, eye symptoms: novel coronavirus can contact the conjunctiva of the eye, which may induce conjunctivitis, leading to eye pain, itching, and may also cause eye foreign body sensation and secretion increase;

4. Symptoms of nervous system: If novel coronavirus is seriously infected, diseases such as encephalitis and meningitis may occur due to low general immunity. Some severe patients may have nervous system symptoms such as headache, jet vomiting, decreased vision and limb convulsions after secondary intracranial infection.

5. Skin manifestations: After being infected by novel coronavirus, erythema-like rash and urticaria-like lesions mainly involved the trunk, mostly accompanied by facial involvement, but no mucosal changes.