Movement disorders are common neurological problems, but epidemiological studies are lacking in our locality. Type of movement disorder depends on the site of the lesion and the type of pathologic changes. Objective: To estimate the prevalence rate of dystonia, chorea, and athetosis, in Al Quseir City (Red Sea Governorate), Egypt. Methods: This study is a part of a door to door survey of major neurological disorders that was conducted in Al Quseir City, Red Sea Governorate, Egypt, on a sample

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... ze of 33,285 subjects. They were screened through 3 neurologists and 15 social workers. Then, each of the three staff members of neurology subjected positive cases to meticulous clinical evaluation separately. Results: Thirteen cases with dystonia, 7 cases with chorea and 5 cases with athetosis were found with prevalence rates of 39/100,000, 21/100,000, and 15/100,000 respectively. Conclusion: Prevalence rates of dystonia, chorea, and athetosis in Al Quseir City are higher than those of the worldwide. This may be attributed to some specific environmental factors of this locality.