Some outpatients complain of nasal reflux, self-conscious inflow of nasal mucus to the pharynx, and often repeated croup and vomiting, the causes of which are pathological and physiological.
The mucous membrane in normal nasal cavity will secrete mucus, which is the origin of nasal mucus; when cold or sinusitis, the mucous membrane in nasal cavity will be hypertrophied due to the stimulation of bacteria, virus or other sensitive sources, and the secretory glands on the mucous membrane will secrete a lot of mucus, which is the cause of excessive nasal mucus. Because of the gravity, when the face is upright, the snot will flow down the nostrils along the front nasal cavity, which is the generally visible snot.
When the face is lying upward (such as sleeping), the nasal snot will no longer flow out from the nostrils forward due to the change of posture, but flow backward to the nasopharynx, which is called “nasal snot flowing backward”.
The nasal cavity of normal people will continue to produce secretions, which will be discharged into the throat from the posterior nostril, and the daily secretion volume is 500-700ml of “nasal reflux”, which is a physiological phenomenon and is normal, that is, people generally do not feel this “nasal reflux This is a physiological phenomenon, which is normal, that is to say, the average person does not feel this “nasal backflow” physiological effect in progress. Of course, for some people who are more nervous, they may notice this normal amount of “nasal reflux” and mistakenly think that they are sick and repeatedly seek for medical treatment for decades.
This is one of the reasons for the psychological foreign body sensation in the throat and the abnormal feeling of nasal reflux. Of course, nasal reflux beyond the normal amount should be regarded as a pathological factor, which includes almost all rhinitis and sinusitis and nasopharyngitis, cysts and other diseases that may produce this symptom.
Besides being an orifice for breathing, the nose has the following functions: smell, articulation function, reducing the weight of the skull, excretion of tears, and respiratory physiological function.
Nasal reflux: itself is just a signal, as long as a qualified ENT specialist has done a detailed examination for you, he or she can certainly give you the best advice without being overly nervous or taking it lightly, because it can be an acute rhinitis caused by a cold, or a more serious acute sinusitis or chronic rhinitis, or even it can be caused by a cracked or fractured bone plate at the junction of the brain and the nose cerebrospinal fluid exudation.
Perhaps on the contrary, there are times when the patient just accidentally entered the pool or sea water in the sinus cavity while swimming a few days ago and it was not drained until today, which is completely unrelated. If there is no pathological cause after a thorough examination by a doctor, there is no need to be concerned about it.