Because watermelon has diuretic effect, coupled with high water content, the amount of urination will increase after eating watermelon, thus reducing the content of bile pigment and making the stool unobstructed, which has a certain effect on treating jaundice. In addition, the diuretic effect of watermelon can also excrete salt and reduce edema, especially leg edema. Watermelon is a natural leg-beautifying fruit for women whose legs are numb and swollen after sitting in front of the computer for a long time.