What Causes Nosebleeds

What causes nosebleeds? A wide variety of things can act as nosebleed triggers. A nosebleed is one of those common conditions that can have many different causes. Nosebleeds are usually a bothersome condition, but not a terribly serious one.

A nosebleed usually occurs when the septum becomes irritated or injured. The septum is the bony, cartilage covered wall that divides your nose into two nostrils. This wall is filled with blood vessels, so any irritation can easily cause it to bleed. However, any irritation to the inside of the nose, septum or not, can lead to a nosebleed.

Nosebleed Triggers

  • Allergies can cause a nosebleed. The nosebleed is not caused by the actual allergies, but by the drying effect allergy symptoms tend to have on the nose. When your nose is runny or itchy, it may be drying out the nostrils. This drying leads to cracking, which leads to bleeding.
  • Dry air can often cause a nosebleed. When the air is dry, there's very low humidity. Your nasal passages tend to dry out under these conditions, causing bleeding. This problem can be easily resolved by using a humidifier in your home to help keep your breathing passages moist.
  • Hair removal can often cause a nosebleed. Any shaving or plucking of nose hair can irritate the area. This irritation can cause a small nosebleed. However, this type of nosebleed should be very light and only last a few minutes.
  • Head trauma can cause a nosebleed. The trauma doesn't necessarily have to be on the nose to cause bleeding. If you do experience a head trauma that causes your nose to bleed, it's best to see a doctor immediately, as this could be a serious condition.
  • Certain medications can cause nosebleeds. Some medications, such as blood thinners or nasal sprays, can cause nosebleeds as a side effect.
  • Nasal or sinus infection can sometimes lead to a nosebleed. Not only can the infection itself cause irritation, but the treatments used to deal with the infection may cause drying or irritation to he nostrils.
  • Nose trauma can often cause a nosebleed. It doesn't take much for a direct hit to the nose to cause a nosebleed. As long as the bleeding is light and stops within 15 minutes, you shouldn't need to see a doctor. However, if it's painful to touch your nose, it may be broken. If you suspect a broken nose, it's best to see a doctor.
  • Picking or scratching inside your nose can lead to a nosebleed. Regardless if it's intentional or accidental, any picking or scratching around the inside of the nostrils can easily cause injury or irritation.
  • A tumor in the head or nose is very rare problem, but it can sometimes be the cause of a nosebleed or frequent nosebleeds. This is, by far, the most unlikely cause of a nosebleed.      
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Find articles about nosebleeds, including how to stop a nosebleed, what causes nosebleeds and unexplained nosebleeds.

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