Brown fluid after menstruation is normal and usually does not matter. Because after menstruation there are still residual substances inside the uterus are not completely discharged, so it may take 2-3 days to be able to completely eliminate. Later in the menstrual period in the body of the residual time is longer, oxidation of the color will appear to change and thus produce brown liquid, you can not be nervous usually drink more warm water, can promote the menstrual blood faster discharge. It may also be due to women’s uterine cold, menstrual blood can not be normally discharged and lead to color changes, you can do a good job of abdominal warmth, drink more brown sugar water can relieve menstrual blood brown and other problems. If you have too much residual material for a long period of time, or if your period is too long, it is best to go to the hospital in time for a checkup, considering that it is caused by menstrual irregularities.