It is normal to have no leukorrhea in early pregnancy. Leukorrhea is mainly formed by vaginal secretions, cervical canal secretions and vaginal cervical shedding cells, the amount is relatively small, and normal leukorrhea is white and transparent. If there is an increase in leucorrhea or a change in color or odor, it is considered abnormal, especially if it occurs after pregnancy, it is more likely to be vaginitis. After pregnancy, the hormonal level of the body changes and the local self-cleaning ability decreases, making it easy for local infection to occur. It is necessary to wash the vagina with water daily and avoid douching to prevent infection.