After trigeminal neuralgia surgery, there may be sequelae such as headache, hearing loss and trigeminal nerve damage. 1. Headache: After trigeminal neuralgia surgery, poor healing of the wound site may lead to loss of cerebrospinal fluid, thus causing headache and other symptoms. 2. Hearing impairment: after trigeminal neuralgia surgery, it will cause different degrees of intracranial edema, which will lead to increased intracranial pressure, and then lead to the sequelae of hearing impairment. 3. Trigeminal nerve damage: Trigeminal neuralgia surgery is prone to cause damage to the trigeminal nerve, which will result in symptoms such as facial numbness and weakness in opening the mouth. If the above symptoms occur after trigeminal neuralgia surgery, you need to go to the hospital in time for examination and actively cooperate with the doctor to carry out targeted treatment.