The labia minora are the inner folds of skin located on either side of the vaginal opening in females. They are part of the external genitalia, also known as the vulva. The labia minora can vary in size, shape, and color among individuals, and they play a role in protecting the vaginal and urethral openings. These structures are rich in blood vessels and nerve endings, contributing to sexual arousal and sensitivity. The labia minora also help to maintain moisture in the vaginal area and can change in appearance due to hormonal fluctuations, age, or other factors.