How many virginal walls do girls have?
Hi there, thanks for your question.
I am guessing that you mean vaginal walls not virginal walls.
Girls and women have one vaginal wall each. The vagina is a muscular tunnel (so, the tunnel is the wall) that leads up towards a woman's uterus.
Maybe you're also meaning the external genitalia and wondering how many labia (vaginal lips) a woman has? On the outside of a women's vagina (in her genital area) there are two sets of skin flaps, often called vaginal lips but their technical names are labia minora (the inner lips) and labia majora (the outer lips).
Hope this answers your question. Have a look at the links below for diagrams and more info. All the best.