Children often have a few isolated nosebleeds, but repeated nosebleeds will mean a trip to the doctor.
Mild trauma is the usual cause, as the nose is well supplied with blood vessels and bleeds easily.
Falls, fistfights, vigorous nose rubbing, nose blowing or nose picking are typical causes. Symptoms Frequency can vary from once a month to several times a day. With heavy bleeding, blood may be swallowed and produce vomiting of blood or black tarry bowel motions. Examining the nose will show a red, raw area with fresh clots or old crusted blood. Investigations A blood test to check for anaemia, which may not be evident until 12 hours later.