Narrow vagina is usually caused by vaginal spasms. The vagina in its normal state is a muscular duct, which is very stretchable and does not usually cause narrowing unless tonic spasms occur. Of course, there is a possibility of congenital organic disorders, which need to be examined. If it is a congenital stenosis, surgery can be considered. If the vaginal spasm is due to mental tension, you need to pay attention to mental relaxation, psychological counseling treatment if necessary, or oral sedative medication. When the body is completely relaxed, the vaginal spasms will disappear and help to complete a normal sexual life. If the vaginal spasms occur for psychological reasons, psychological counseling should be done.