Most transient blepharospasms with obvious causes are physiologic in nature and are usually normal on all tests. Pathologic blepharospasm requires differentiation and identification of ocular and neurological disorders. Patients are advised to see a specialist at the hospital for diagnosis, such as an ophthalmologist for a specialist eye examination to exclude secondary blepharospasm caused by conjunctivitis, keratitis, ocular trauma, electrophthalmia, acute iritis, and blepharitis, or a neurologist for cranial and cervical imaging. This may include CT, MRI, functional brain imaging, cerebral angiography, etc. to rule out secondary blepharospasm due to neurological disease. If none of the tests reveal a problem, idiopathic blepharospasm should also be considered. In conclusion, the etiology of blepharospasm is diverse and involves many diseases, and the diagnosis needs to be made by a multidisciplinary, experienced physician.