Women who have given birth will experience menstrual discharge, which occurs in a cycle of four to six weeks. There are three stages, the first stage is known as the bloody stage and is bright red in color with a severe bloody odor. The first stage usually lasts for about 5 days and then moves on to the second stage, called plasma leakage. The color of the discharge will gradually change from bright red to light pink. The second stage lasts for about half a month before entering the third stage of the discharge, which is also known as the white discharge stage. The light pink color gradually turns into white and lasts for about 1 month. During the period of discharge, women are advised to take appropriate measures to prevent infection. If the color of the discharge changes to purulent or even has a severe fishy smell, it is necessary to participate in anti-inflammatory treatment under the guidance of the doctor, and at the same time, pay attention to resting and observing the changes in the discharge in daily life.