If you have blood in your leukorrhea a few days before your period and you do not have abdominal pain or other discomfort, it is a normal pre-menstrual sign and should be caused by menstrual disorders or endocrine disorders, and it is recommended that patients can be regulated. In addition, gynecological diseases can also appear the above symptoms, such as cervical erosion, cervical erosion is a change of chronic cervicitis, mainly manifested as increased vaginal discharge, leucorrhea is light yellow, sometimes bloody leucorrhea or bleeding after sexual intercourse. Therefore, it is recommended that patients go to the hospital for a detailed examination to exclude the possibility of gynecological diseases, pay attention to drinking more water and exercising more during this period, adjust the work and rest time, avoid staying up late, avoid eating cold, spicy and stimulating food, and keep a happy mood.