Hello, I read carefully your query and understand your concern. By themselves, both nosebleeds and headaches are common in children are usually not caused by a serious problem. Together, however, these two symptoms might indicate a potentially issue. Nosebleeds may even be a part of childhood migraines. In case that the episode is repeated, I suggest to consult a neurologist for further evaluation. Hope my answer was helpful. If you have further queries feel free to contact me again. Kind regards! Dr.Dorina Gurabardhi General &Family Physician