Simply put. There are benign causes and worrisome ones. If the frequency is unusual and lasting longer than a minute or two, I would advise you to get it checked.
At the A&E, our practice would be to first examine where the bleeding occurs, if it’s at the front and easily seen it’s usually due to mucosal injury be it nose digging or blowing your nose very hard. Some medicines like acne medications can cause dry mucosa, as can cold weather and climates.
Some simple bloods to check for platelet levels and blood clotting ability are done to exclude that as a cause of frequent bleeds. If normal, we would then suggest referring to ENT for a evaluation.
Unfortunately, smoking and high processed foods intake does increase risk of nasopharyngeal and throats cancers. Any such risk factors should be minimised through healthy living.
Please see the ENT and allay your fears soon!
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