The commonest cause of limp in a child of seven years is -: (A) T.B. hip, (B) C.D.H, (C) Perthe's disease, (D) Slipped upper femoral epiphysis
Answer is C. The most common cause of limp in a child between 3-10 years is transient synovitis of hip.
However, among the given options Perthe's disease is the best answer as Perthes disease is the second most common cause of limp in a child between 5-10 years.