Scarlet fever symptoms are analyzed according to subtypes, which are divided into common, septic, toxic, and surgical types, etc. Common symptoms include fever, rash, and headache. Scarlet fever is an acute respiratory infectious disease caused by group A beta-hemolytic streptococcal infection. Clinical features are mainly fever, diffuse bright red rash all over the body and obvious desquamation after the rash, etc. In severe cases, there can be heart, kidney and joint damage. 1. Common type: most patients belong to this category, typical symptoms of persistent fever, body temperature can be as high as 39 ℃, can be accompanied by general malaise and other symptoms of toxicity, there can be sore throat, dry throat, swallowing pain and other common pharyngolaryngitis manifestations, there can be purulent exudate, the rash is uniformly distributed, diffuse hemorrhagic pinpoint size, there can be an itchy sensation, pressure of the discoloration. 2. Septic type: often manifested as pyogenic inflammation of pharyngitis, local necrosis can form ulcers. Bacterial proliferation can form purulent otitis media, sinusitis, mastoiditis and cervical lymphadenitis, etc., and can even cause sepsis. 3. Poisoning type: mainly manifested as toxemia, such as high fever, headache, severe vomiting, toxic myocarditis and infectious shock in severe cases. Rash is often hemorrhagic. 4. Surgical type: including obstetric type, the pathogenic bacteria invade from wound or birth canal, and the rash often spreads from wound to the whole body. Patients who have the above symptoms and suspect scarlet fever need to be diagnosed and treated in time to avoid adverse consequences.