11. Pregnancy may cause the labia minora to darken in color. 12. Following menopause, falling hormone levels cause further changes to the labia . 13. The labia minora and labia majora are collectively known as the lips. 14. The labia minora and labia majora are collectively known as the lips. 15. The scrotum is developmentally homologous to the labia minora and labia majora. 16. The scrotum is developmentally homologous to the labia minora and labia majora. 17. The labia has a protective function, but the foreskin does not? 18. The second strategy includes removal of the clitoris and the inner labia . 19. The scrotum and labia majora develop to have both similarities and crucial differences. 20. On the other hand, there is an opposite movement of labia stretching.