Public condition directory
Browse public condition summaries from China medical resources by stable specialty category.
Secretory otitis media
Secretory otitis media is a non-suppurative inflammatory disease of the middle ear characterized by conductive hearing loss and middle ear effusion. It is common in children, and symptoms include hearing loss or deafness, ear pain, tinnitus, and ear stuffiness.
View detailsSensorineural hearing loss
Sensorineural hearing loss refers to hearing impairment or loss caused by lesions in the sound perception and analysis pathway (i.e., inner ear hair cells, stria vascularis, spiral ganglion, etc.), inner ear auditory nerve, and auditory center, which obstruct sound perception or sound information transmission. It manifests as hearing loss, tinnitus, vertigo, and imbalance.
View detailsEustachian tube inflammation
The Eustachian tube is a passage connecting the middle ear cavity and the nasopharynx. Eustachian tube inflammation is an inflammation that occurs in the Eustachian tube. Common symptoms include hearing loss, tinnitus, ear stuffiness, and ear pain.
Dysosmia
Olfactory dysfunction refers to an abnormal perception of odors caused by organic and/or functional lesions at various points along the olfactory pathway during the process of odor reception, transmission, and information analysis and integration. There are many causes of olfactory dysfunction, among which upper respiratory tract infections, nasal/sinus diseases, and head trauma are the main reasons. In addition, toxins or drugs and congenital factors also account for a certain proportion. The main symptoms include hyposmia, anosmia, olfactory agnosia, parosmia, phantosmia, and increased sensitivity to olfactory stimuli.
View detailsVocal cord cyst
Vocal cord cysts, also known as submucosal vocal cord cysts, are benign vocal cord diseases caused by various irritations leading to obstruction of submucosal mucous gland ducts and subsequent mucus retention. This disease is common in adults. The main symptoms include hoarseness, difficulty speaking, or accompanying throat swelling and pain.
View detailsRetracted eardrum
Tympanic membrane retraction, also known as retracted eardrum, refers to the inward displacement of the tympanic membrane towards the middle ear. Normally, the pressure difference across the tympanic membrane is minimal, and the eardrum remains in its normal position. However, certain conditions can lead to a reduction of air in the middle ear, creating a pressure difference between the external auditory canal and the middle ear. This pressure imbalance causes the tympanic membrane to retract inward, resulting in tympanic membrane retraction. Mild tympanic membrane retraction typically does not cause any symptoms. However, when the retraction is severe enough to compress the ossicles or other structures within the ear, it can lead to symptoms such as ear pain, tinnitus, aural fullness, and temporary hearing loss. In severe cases, it may result in permanent hearing loss.
View detailsNasal septal perforation
Nasal septal perforation refers to a hole of varying size in the bone or cartilage of the nasal septum, connecting the two nasal cavities. The main symptoms include nasal dryness and crusting, nasal obstruction, whistling sounds during breathing, dizziness, headache, difficulty concentrating, and occasional bleeding.
View detailsSudden sensorineural hearing loss
Sudden sensorineural hearing loss (SSNHL), also known as idiopathic sudden deafness, refers to an unexplained, sudden decrease in hearing that occurs within 72 hours. The main clinical manifestation is unilateral hearing loss, which may be accompanied by tinnitus, aural fullness, vertigo, nausea, and vomiting. In recent years, the incidence of SSNHL in China has shown an upward trend. The male-to-female ratio is roughly equal, and the left ear is slightly more affected than the right ear.
View detailsEar trauma
Ear trauma refers to injuries to the ear caused by external forces. The location and extent of the ear injury vary depending on the magnitude, direction, and manner of the external force. Common types include auricle contusions or lacerations, external auditory canal trauma, middle ear trauma, and inner ear trauma.
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