11. Other scrotal tissue forms the labia majora . 12. Though called the smaller lips they can often be of considerable size, and may protrude outside the labia majora . 13. The labia minora atrophy, making them become less elastic, and pubic hair on the labia majora becomes more sparse. 14. The urogenital folds become the " labia minora ", and the labioscrotal swellings become the " labia majora ". 15. The labia majora have fewer superficial nerve endings than the rest of the vulva, but the skin is highly vascularized. 16. The labioscrotal swellings become the labia majora and mons pubis in females, or fuse to become the scrotum in males. 17. Later in life, the labia majora once again gradually lose fat, becoming flatter and more wrinkled, and pubic hair turns grey. 18. During belly aspect of the genital tubercle ) form the labia minora, and the labioscrotal swellings enlarge to form the labia majora . 19. CT and MRI revealed thrombosed blood vessels along the inguinal course of the uterine round ligament that extended towards the labia majora . 20. During sexual arousal, the labia majora swell due to increased blood flow to the region, and draw back, opening the vulva slightly.
