Master of Clinical Medicine from Peking University, Zheng Jieyuan has worked at tertiary hospitals such as Peking University People's Hospital and Beijing Friendship Hospital. He has extensive clinical experience in otolaryngology and a systematic and standardized approach to clinical diagnosis and treatment.

Excellent:Ear Diseases: Diagnosis and treatment of common diseases of the outer ear, middle ear, and inner ear, including hearing loss, tinnitus, and vertigo. Nose Diseases: Diagnosis and treatment of rhinitis, sinusitis, allergic rhinitis, nasal bone fractures, and nasal foreign bodies. Throat Diseases: Diagnosis and treatment of pharyngitis, laryngitis, tonsillitis, hoarseness, pharyngolaryngeal reflux, voice disorders, and sleep apnea syndrome.