There is no odor in the vagina, and the redness and discomfort of the labia may be caused by acute injury, overstimulation, allergic factors and other factors. 1. Acute injury: women’s lower body suffered an acute injury, such as external blows or riding injuries, resulting in localized labia suffered a mild injury, it will make the labia red and uncomfortable, manifested as pain and swelling. 2. Excessive stimulation: for example, wearing too tight underwear, repeated friction on the labia area, so that the labia area is overstimulated, which can lead to redness and discomfort of the labia. 3. Allergic factors: such as allergic reaction to toiletries or newly purchased underwear, can also make the labia red and uncomfortable, manifested as intense itching, tingling, and localized may also appear small red spots. Vaginal odor, redness and discomfort of the labia, lasting for a long time, it is recommended to consult a doctor for examination and treatment in a timely manner.