An ENT doctor, or otolaryngologist, is a medical specialist who focuses on diagnosing and treating disorders related to the ears, nose, and throat, as well as related structures of the head and neck. This includes conditions such as hearing loss, sinusitis, tonsillitis, vocal cord disorders, and sleep apnea, among others. ENT doctors receive specialized training in both medical and surgical management of these conditions. They often work closely with other medical professionals such as audiologists, speech-language pathologists, and allergists to provide comprehensive care to their patients.