The causes of children like to crook their necks include the following: 1. First, the symptoms caused by children suffering from congenital squint. If a child suffers from congenital myotonic squint, there will be involuntary crooked neck, caused by spasm or over-shortening of the sternocleidomastoid muscle on one side of the child. The symptoms of crooked neck will be relieved after the spastic muscle is relaxed. 2. If the child’s eyes have strabismus is very obvious, this time the child will be crooked neck, eyes will squint, need to give the child timely glasses treatment.