A cochlear implant is an electronic medical device designed to restore sound perception in individuals with hearing loss. It is often referred to as an 'ear implant' or 'bionic ear'. The device consists of two main parts: external and internal. The external part includes a microphone that collects environmental sounds, a speech processor that converts and processes these sounds into digital signals, and a transmitter that sends these signals to the receiver/stimulator located under the skin. The internal part, surgically implanted, consists of a receiver/stimulator and an electrode array extending into the cochlea, which transmits signals to the auditory nerve. Cochlear implant surgery is performed under general anesthesia by an Ear, Nose, and Throat (ENT) surgeon. During the operation, a small incision is made behind the ear, the mastoid bone is accessed, and the receiver/stimulator part of the internal unit is placed. Subsequently, the electrode array is gently advanced into the cochlea. Once the procedure is complete, the incision is closed. The duration of the operation may vary depending on the patient's condition. In the postoperative period, temporary conditions such as nausea, dizziness, or discomfort in the ear region may occur. The implant is not activated immediately; it is typically programmed and activated by an audiologist two to six weeks after the surgery. It is important to note that cochlear implants do not fully restore normal hearing. However, they can help individuals with hearing impairment perceive environmental sounds, understand speech better, and improve their communication skills. During the post-operative recovery process, strict adherence to the instructions of the physician and audiologist is of paramount importance.