The lower eyelashes are short and small, about 50-75, and the length is about 6-8mm, slightly curved forward and downward. Male squat lashes are 100 degrees to 120 degrees in flat view, and women are 10 degrees smaller than men. When the eyes are closed, the upper and lower eyelashes are not interlaced. In the center of the upper and lower jaws, the eyelashes are longer and more, and the inner jaw is the shortest. Eyelash follicles are rich in nerves, so the eyelashes are very sensitive, and touching the eyelashes can cause blinking reactions. There are sweat glands and sebaceous glands around the hair follicle, and their drainage tubes are opened in the eyelash hair follicles. The color of the eyelashes is generally darker than the hair, and it does not turn white due to age (sometimes several senile white eyelashes are visible), but it can also be white due to certain diseases, such as albinism.