Sir/Madam, I am suffering from Arnold–Chiari malformation, is a condition affecting the brain. It consists of a downward displacement of the cerebellar tonsils through the foramen magnum (the opening at the base of the skull), sometimes causing non-communicating hydrocephalus as a result of obstruction of cerebrospinal fluid (CSF) outflow. The cerebrospinal fluid outflow is caused by phase difference in outflow and influx of blood in the vasculature of the brain. It can cause, muscle weakness,neck pain, , poor hand coordination (fine motor skills).Various surgery done from me to improve the muscle weaknesss but there is no improvement till now.