Lochia serosa is the serous vaginal discharge - Lochia alba is the vaginal discharge of decreased blood and increased leukocytes

- Lochia serosa is the serous vaginal discharge that occurs 4 to 7 days after childbirth.

- Lochia alba is the vaginal discharge of decreased blood and increased leukocytes that’s the final stage of lochia. It occurs 7 to 10 days after childbirth.