Common causes of headaches and nausea in children include sinusitis, meningitis, and upper respiratory tract infections.
1. Sinusitis: when sinusitis attacks, there are secretions accumulated in the nasal cavity, mostly purulent mucus, mucosal swelling, swelling of the sinus openings, resulting in negative pressure in the sinus cavity, resulting in headache symptoms, a large amount of nasal mucus along the back of the nasal cavity into the oral cavity, thereby stimulating the pharynx, nausea and vomiting.
2. Meningitis: Meningitis is usually caused by viruses, bacteria and other pathogenic microorganisms, manifested by fever, headache, nausea and vomiting, impaired consciousness and other symptoms.
3. Upper respiratory tract infections: common germs are viruses, generally manifested as nasal congestion, runny nose, sore throat, nausea, vomiting, fever can be accompanied by headache and other symptoms.
The child headache nausea want to vomit, there may be other reasons, it is recommended to go to the hospital in time for relevant examinations, clear cause of the disease and actively symptomatic treatment.