Hello dear user! I have gone through your query and understood your concerns! Thank you for sharing them on healthcaremagic. Spontaneous nose bleeding once in a couple of months as you mention in you query is not an issue to be worried a lot. There are several factors that may give nose bleeding at this age. - First, and the most common is High Blood Pressure. Please check your blood pressure 2-3 times a day to understand how it varies during the day, and especially when nose bleeding occurs. - Low platelets in blood. Low platelets may be an other cause of epistaxis and it may happen due to a large list of diseases, but in these cases the bleeding is almost every day. - Hot and dry air, pollution, fragile blood vessels of the inner nose, etc, are very rare but possible. Also there is no need to be worried about. Anyway I would recommend you to go through a complete blood count analysis, lipids and sugar in blood to have a closer view of your health status. You can write us again if you have more details and questions to ask. I ll be happy to answer. I hope this answer was helpful to you! Please kindly rate it and write a short review about your experience with me! Thank you and best regards! DR ERIOL.