Black snot

Introduction Most of the black nose is made by inhaling a lot of black dust adhering to the nose. Normal people secrete about a few hundred milliliters of nasal discharge every day, except that these nasal sputums follow the direction of the nasal mucociliary movement, flowing to the posterior nasal orifice to the pharynx, plus evaporation and dry knots, generally do not see it flowing out of the nasal cavity. In fact, runny nose is a natural detoxification effect when taking a cold. Although taking medicine can stop the discomfort such as nasal congestion, it also destroys this natural mechanism. Many people like to use inhalation of steam to improve the trouble of nasal discharge. Save money and temporarily solve the problem of nasal congestion.

Cause

Mostly due to the inhalation of a large amount of black dust, such as coal dust, soot, metal dust mixed in the nose.

an examination

Related inspection

Otolaryngology CT examination nasal endoscopy

The snot is black with impurities.

Differential diagnosis

1. If it is a clear watery nose, the secretion is thin and transparent, such as clear water, more common in patients with early colds and allergic rhinitis. However, if the patient with a head injury suddenly sheds water, it is often not a snot, but a cerebrospinal fluid rhinorrhea. Do not think that it is a watery nose and delay treatment.

2. If it is a yellow watery nose, most of the cystic fluid from the rupture of the serous cyst in the maxillary sinus is characterized by intermittent leakage of yellow water from one side of the nasal cavity. If it is a white mucous sinus, it is common in chronic rhinitis, and physical and chemical stimuli can also increase mucus sinus.

3. Acne purulent sputum is more common in the late stage of the cold, and may have a purulent nasal discharge. As the cold heals, the purulent component in the purulent nasal sputum gradually decreases. Septic nasal sinus is also the main symptom of paranasal sinusitis, especially if you have a cold, the course of disease is more than 10 days, still purulent purulent nasal discharge, should consider whether you have sinusitis.

4. If it is yellow pus, it is common in heavier paranasal sinusitis, often with sinus bone destruction, pus has a significant odor. The yellow nasal sputum in the nasal cavity of the child is often caused by foreign body in the nasal cavity. White bean dregs-like snot, usually caused by cheese rhinitis, and stench. Green sputum-like snot, mostly thin sputum formed after dry purulent sputum, has a special odor, is a characteristic of atrophic rhinitis, also known as stinky nose.

5. Bloody nose is bloody or small blood clots in the nose, and the nose is pink. Nasal trauma, surgery, inflammation, stones, foreign bodies, and systemic diseases such as hypertension, arteriosclerosis, blood diseases, acute infectious diseases, chemical poisoning, vitamin C and K deficiency, etc., can appear bloody nose. Bloody nasal discharge may also be an early symptom of nasal malignant tumors, especially in middle-aged and above patients, often taking out or inhaling hemorrhagic nasal discharge from the posterior nostrils, and examining the nasal cavity and nasopharynx in detail. The snot is black with impurities.

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