Spasmodic dysphonia is a clinical disorder in which the muscles of the larynx (i.e., the articulatory organ) are excessively tense resulting in an abnormal voice. Spasmodic dysphonia is a disorder of abnormal muscle tension, the cause of which used to be thought to be psychogenic, but is now thought to be an abnormality in the basal nucleus of the brain in the central nervous system of the brain, and to cause uncoordinated laryngeal neuromodulation or abnormal spasms of the laryngeal muscles. It usually manifests as interruption of the voice when speaking, difficulty in opening the mouth, having voice tremors, and difficulty in continuous speech. The disease is usually treated medically with anticholinergics, such as atropine, scopolamine, scopolamine, and tropicamide; and baclofen, a skeletal muscle relaxant. Medication can have side effects, such as anticholinergics can cause accelerated heartbeat; baclofen may cause gastrointestinal upset and tachycardia, etc. It is usually used in very severe myasthenia gravis disorders. Botulinum toxin treatment is also available and is the best treatment available, with effects lasting about 3 to 6 months and requiring continuous injections. Surgical treatments may be considered if necessary, including recurrent laryngeal nerve dissection, thyroid chondroplasty, laser vocal cord myotomy, and nerve stimulator grafting. If spasmodic dysphonia is identified, it is advisable to seek prompt medical attention and receive treatment as soon as possible.