Leukorrhea and sperm are different in form, color and odor. Normal leukorrhea is white and has no odor, but during ovulation, it increases and becomes transparent, like egg white, and stretches very well, usually to more than ten centimeters, which is unique to women and not to men. If a woman’s leucorrhea appears yellowish and smelly with vulvar itching, it is considered to be caused by vaginitis. Sperm is invisible to the naked eye, what can be seen by the human eye is semen. Normal semen is milky white, yellowish or colorless, when sperm is exposed to air for a long time, it turns yellow and has some odor, normal semen is a sticky mixture, sperm is unique to men and not to women. If the leucorrhea is mixed with sperm, it is invisible to the naked eye and can be identified by instruments.