Nosebleeds in summer may be caused by environmental factors, nasal inflammation, deviated nasal septum, nasal hemangioma and systemic diseases, etc. General treatment, medication and surgery should be given according to the causes. 1. Environmental factors: dryness of nasal mucosa caused by high temperature and dry air in summer, capillary rupture, resulting in nosebleed, can be detached from the high temperature environment, drink plenty of boiled water, eat more fresh vegetables and fruits to relieve nosebleed. 2. Nasal inflammation: Nosebleeds caused by rhinitis and sinusitis can be treated with saline rinsing of the nasal cavity, nasal decongestant, such as furosemide nasal drops, to constrict blood vessels; oral amoxicillin, cefaclor and other anti-infective treatments, to control inflammation, and to improve the symptoms of nosebleeds. 3. Deviated nasal septum: deviated nasal septum causes nosebleed, you can consider septoplasty, nasal septum correction surgery and other surgical treatments to correct the structure of the nasal septum to improve nosebleed. 4. Nasal hemangioma: Nasal hemangioma can lead to nosebleed in summer, and can be removed under nasal endoscopy. 5. Systemic diseases: such as leukemia, thrombocytopenia, hemophilia, etc., and liver and kidney function abnormalities that lead to coagulation dysfunction. Internal medicine treatment of primary disease, local nasal filling can stop bleeding. Summer nosebleed easily, it is recommended that timely medical treatment to identify the cause of targeted treatment, so as not to delay the condition.