During what postnatal period does Serosa lochia occur and what color is it?

During the postnatal period, serosa lochia typically occurs between 4 to 10 days after delivery. It is characterized by a pinkish-brown color, which results from the presence of blood mixed with other fluids and tissue debris as the body begins to heal and transition from the more intense red lochia rubra of the first few days. This stage signifies the gradual decrease in bleeding and the body's process of returning to its non-pregnant state. This understanding of the timeline and color of lochia phases is essential for midwives to assess the normal progression of postpartum recovery and to recognize any deviations that might indicate complications.