Health tips: pharyngeal innervation is very rich. Sensory and motor nerves mainly come from the pharyngeal plexus of the posterior pharyngeal wall, including branches of vagus nerve, glossopharyngeal nerve, accessory nerve and parasympathetic nerve. In addition, the second branch of trigeminal nerve and glossopharyngeal nerve are directly distributed in the pharynx, so pharyngeal sensation is extremely sensitive. Diseases of many organs in the whole body can also cause abnormal sensation in the pharynx through the reflex and conduction of nerves. Therefore, the mechanism of pharyngeal foreign body sensation is complex, and there are many pathogenic factors. Some factors are easy to be found, such as biological factors such as bacteria and parasites, physical factors such as heat, cold, electric current and air pressure, mechanical damage and chemical factors. In addition, mental factors can also cause the disease, such as emotional fluctuations and long-term excessive tension, fatigue caused by neurosis, sometimes organic diseases and mental factors exist at the same time, constitute a complex etiology.
Pharyngeal diseases such as various types of pharyngitis, chronic tonsillitis, tonsil stones, polyps, keratosis, cysts, scars and abscesses, uvula too long. Foreign bodies in pharynx, pharyngeal vein, pharyngeal diverticulum, pharyngopharyngeal scar, pharyngopharyngeal diverticulum, etc. These diseases can often be found by pharyngeal examination, but for early tongue base tumor and tonsil malignant tumor, it is not easy to find only by visual inspection. If we use palpation instead, we can feel local hardening. For the small mucosal erosion hidden between the folds of the pharyngeal mucosa, the opening of the pharyngeal sac at the top of the nasopharynx, the adhesion in the pharyngeal recess, and the nasopharyngeal carcinoma developing under the mucosa, if the examination is not detailed, it is often missed. Pharyngitis is also the cause of pharyngitis, such as chemical dust.
Diseases of adjacent organs such as nose and nasopharynx, such as sinusitis, and nasopharyngitis can also lead to foreign body sensation in the pharynx. Laryngeal diseases such as Supralaryngeal neuritis, rheumatic cricoarytenoarthritis, epiglottis cyst, epiglottis morphological abnormalities, laryngeal chondroperitis, neurovascular laryngeal edema, cricopharyngeal muscle and hypopharyngeal muscle spasm, etc. Esophageal diseases such as esophageal spasm, diverticulum, achalasia, early malignant tumor, traumatic esophagitis, reflux esophagitis, cardiac spasm, diaphragmatic hiatus, etc. Neck diseases such as neck mass, fistula, lymphadenitis, thyroglossal cyst, thyroid inflammation, tumor and other diseases such as odontopathy, otopathy, glossopharyngeal neuralgia, cervical arteritis, etc. can cause pharyngeal foreign body sensation.