Congenital muscular hypotonia is a state of low muscul tone, often involving reduced muscle strength. Hypotonia is not a specific medical disorder, but a potential manifestation of many different diseases and disorders that affect motor nerve controled by the brain or muscle strength. Recognizing hypotonia, even in early infancy, is usually relatively straightforward, but diagnosing the underlying cause can be diffi cult and often unsuccessful [1, 2]. The long-term effects of hypotonia on child development and later life depend primarily on the severity of the muscle weakness and the nature of the cause [4]..