There is a multitude of reasons for nasal bleed. The reasons can vary from person to person. Kindly mention the detailed history of your complaints and then a proper assessment can be done.

Hi there I understand your concern and anxiety...Most commonly, trauma to the nose triggers a nosebleed. Trauma to the outside of the nose, such as a blow to the face, or trauma inside the nose, such as nose picking or repeated irritation from a cold, can cause a nosebleed...rarely blood disorders,hypertension etc may cause it...consult nearest ent surgeon they will do the needful.