Two children boxing, the one on the right having a<unk>  due to a punch to the face.<unk> s can occur due to a variety of reasons. Some of the most common causes include trauma from nose picking, blunt trauma (such as a motor vehicle accident), or insertion of a foreign object (more likely in children). Relative humidity (including centrally heated buildings), respiratory tract infections, chronic sinusitis, rhinitis or environmental irritants can cause inflammation and thinning of the tissue in the nose, leading to a greater likelihood of bleeding from the nose. Most causes of<unk> ing are self-limiting and do not require medical attention. However, if<unk> s are recurrent or do not respond to home therapies, an underlying cause may need to be investigated. Some rarer causes are listed below: Coagulopathy *Thrombocytopenia (thrombotic thrombocytopenic purpura, idiopathic thrombocytopenic purpura) * Von Willebrand's disease * Hemophilia * Leukemia *HIV * Chronic liver disease—cirrhosis causes deficiency of factor II, VII, IX,& X Dietary *Sulfur dioxide (sulphur dioxide) E220 (as a food preservative used particularly in wines, dried fruits, etc. ) *Sulphites as food preservatives *Salicylates naturally occurring in some fruits and vegetables Inflammatory *Granulomatosis with polyangiitis *Systemic lupus erythematosus Medications/Drugs *Anticoagulation (warfarin, heparin, aspirin, etc) * Insufflated drugs (particularly cocaine) * Nasal sprays (particularly prolonged or improper use of nasal steroids) Neoplastic *Squamous cell carcinoma *Adenoid Cystic Carcinoma *Melanoma *Nasopharyngeal carcinoma *Nasopharyngeal angiofibroma<unk> s can be a sign of cancer in the sinus area, which is rare, or tumors starting at the base of the brain, such as meningioma. Due to the sensitive location,<unk> s caused by tumors are typically associated with other symptoms, such as hearing or vision problems. Traumatic *Anatomical deformities (e.g. septal spurs) *Blunt trauma (usually a sharp blow to the face such as a punch, sometimes accompanying a nasal fracture) *Foreign bodies (such as fingers during nose-picking) *Digital trauma *Middle ear barotrauma (such as from descent in aircraft or ascent in scuba diving) *Nasal bone fracture * Septal fracture/perforation *Surgery (e.g. septoplasty and functional endoscopic sinus surgery) *Nasal bleeds may be due to fracture of facial bones namely maxilla and zygoma. Vascular * Hereditary hemorrhagic telangiectasia (Osler–Weber–Rendu disease) *Angioma *Aneurysm of the carotid artery
Nosebleed
Hemoptysis
Hemarthrosis
Esophageal varices
Mouth ulcer
Nasal polyp
Internal bleeding
Nasal septum perforation