Nosebleed when washing face is related to factors such as high water temperature, nasal hyperplasia, nasal dryness and so on. 1. High water temperature: if the water temperature is too high when you wash your face, rubbing the nose hard at this time can lead to local nasal mucosa vasodilatation, vesiculation and ulceration phenomenon, thus causing the occurrence of nosebleed symptoms. 2. Nasal hyperplasia: if there are hemangiomas, bleeding polyps and other diseases in the nasal cavity, touching it when washing the face can cause the symptoms of nosebleed. 3. Nasal dryness: excessive dryness of the nasal mucosa at night, rubbing the nose when washing the face leads to nasal mucosa damage, causing nosebleeds. Nosebleed when washing face, may also be caused by nasal dryness, it is recommended to improve the relevant examination, clear diagnosis under the guidance of the doctor standardized treatment.