A nose bleed can occur for many reasons, but the most common being dry air, nose picking, nasal irritation from allergies or a cold or blowing the nose too hard.
Other factors can increase the risk like high blood pressure, a structural problem with the nose and certain medications, especially blood thinners, aspirin, and NSAIDs like Ibuprofen, nose bleeds are the most common sign of a condition called Hereditary hemorrhagic telangiectasia (HHT), which is when people have small abnormal blood vessels within the inside or the inner layer of their nose.
Some cancers like leukemia’s and lymphomas can cause the platelets in the blood to be very low, which can lead to nose bleeds. Typically, with easy bruising in other parts of the body. It’s important to see a doctor if the nose bleeds are frequent or extreme or if they’re accompanied by other symptoms like excessive fatigue or bruising