What causes blood in nasal mucus?

Blood in nasal mucus is generally caused by factors such as dry air, bad habits, trauma, rhinitis, or deviated nasal septum. Patients should promptly visit a正规 hospital to identify the underlying cause and receive appropriate treatment. Specific analysis is as follows:

1. Dry Air

Dry air can lead to dehydration and dryness of the nasal mucosa, making it more susceptible to irritation and bleeding. This situation is particularly common during dry seasons or in arid climates. In such cases, patients may use a humidifier to help relieve discomfort.

2. Bad Habits

Certain unhealthy behaviors—such as frequently blowing the nose forcefully, rubbing the nose, or picking the nostrils—can damage the nasal mucosa and lead to bloody mucus. Patients should correct these habits promptly and avoid using their hands to pick their noses.

3. Trauma

Accidental bumps, falls, or other types of injury may result in nasal damage, causing blood-tinged nasal discharge. This is especially common during sports or other high-risk activities. Patients can apply pressure with sterile cotton swabs to stop the bleeding.

4. Rhinitis

Rhinitis is an inflammatory condition of the nasal mucosa that may be triggered by infections, allergies, or other causes. Inflammation leads to dilated blood vessels and increases the risk of bleeding, resulting in blood in nasal mucus. Under medical guidance, patients may use medications such as loratadine tablets, Biyan Kang tablets, or Xiangju capsules for treatment.

5. Deviated Nasal Septum

A deviated nasal septum refers to an abnormality in the cartilage and bone structure that separates the two sides of the nasal cavity. It may disrupt airflow, damage the mucosa, and lead to the aforementioned symptoms. In such cases, patients may seek treatment at a正规 hospital through procedures such as septoplasty, three-line tension-reducing surgery, or septal resection.

These factors may act individually or in combination to cause blood-tinged nasal discharge. If bloody mucus occurs frequently, it is recommended to consult a doctor promptly for an accurate diagnosis and appropriate treatment plan.