Cranial nerve disorder refers to a condition where the nerves that control smell, taste, vision, and facial movements become damaged or dysfunctional. Various synonyms exist for this condition, including cranial neuropathy, cranial nerve injury, cranial nerve palsy, and cranial nerve lesion. These conditions can result from various factors such as viruses, tumors, or autoimmune disorders. They can also occur during birth or due to trauma. Symptoms include headaches, numbness, weakness, or paralysis of the face, difficulty swallowing, eye pain, and double vision. Treatments usually include medications, surgery, or physical therapy. With proper care and management, patients can achieve symptom relief and improve their quality of life.