Nosebleed as soon as you wash your face may be caused by deviated nasal septum, dry rhinitis, nasal cancer, leukemia and other diseases. 1. Deviated nasal septum: The causes of this disease include abnormal cartilage development, huge nasal polyps, heredity, trauma and so on. Because deviated nasal septum will lead to abnormal structure of nasal cavity, and the local mucous membrane is tense and weak, so if you wash your face with excessive force, it is easy to cause nosebleed, and the patient will also have nasal congestion, headache and other symptoms. 2. Dry rhinitis: the nasal mucosa is dry and the capillaries of the mucosa are fragile, so washing the face and touching the nose can cause nosebleed. 3. Nasal cancer: It is clinically believed that the occurrence of nasal cancer is related to long-term chronic inflammation stimulation, frequent exposure to carcinogenic substances, malignant transformation of benign tumors, radioactive exposure, trauma and other factors. Early symptoms are hidden, and when the disease develops further, patients will have symptoms such as nosebleed, nasal congestion, pain, etc. Because the nasal cavity will be stimulated when washing the face, some patients will have nosebleed when they wash the face. 4. Leukemia: the etiology of this disease is still unclear, research shows that it may be related to genetics, viral infections, ionizing radiation, abnormal immune function and other reasons, and can be triggered by alcoholism, irregular work and rest and other bad habits. Because leukemia affects the normal hematopoietic function, patients are prone to nosebleeds, bleeding gums and other symptoms, which can be manifested as nosebleeds as soon as they wash their faces. There are many reasons for nosebleeds, so patients should go to the hospital in time to see a doctor and get a clear explanation of the cause of the nosebleeds.