How long does lochia typically last after a vaginal delivery?

Although all postpartum women experience lochia, the volume and duration of discharge vary from person to person. Lochia refers to the vaginal discharge following childbirth, consisting of blood, necrotic decidua (the uterine lining that sheds after delivery), and other tissue fragments shed as the uterine endometrium undergoes involution. So, how long does lochia typically last after a vaginal delivery? Below, we address this question.

How long does lochia normally last after a vaginal delivery?

Under normal circumstances, lochia resolves within 4–6 weeks postpartum. However, due to individual differences in physical constitution, the duration may vary—some women may continue to experience lochia for up to 1–2 months. Lochia is defined as the vaginal discharge containing blood, necrotic decidua, and other tissue fragments resulting from shedding of the uterine decidua after childbirth. If substantial lochia persists beyond six weeks, it is termed “prolonged lochia” or “incomplete involution,” warranting prompt medical evaluation and treatment. It is recommended that new mothers maintain exclusive breastfeeding, as infant suckling stimulates reflexive uterine contractions, facilitating expulsion of lochia from the uterine cavity. Additionally, strict perineal hygiene is essential: change sanitary pads frequently and avoid sexual intercourse too early to prevent bacterial infection.

Knowledge Extension: The Three Stages of Lochia

1. White Lochia

White lochia occurs during the first 1–2 weeks postpartum. At this stage, lochia becomes white or pale yellow and decreases significantly in volume. Discharge tends to be more abundant in the morning than in the evening and contains large numbers of white blood cells, necrotic decidua, epithelial cells, and bacteria.

2. Serous Lochia

Serous lochia appears between days 4 and 10 postpartum. As the endometrium heals, bleeding gradually diminishes and the color shifts to dark red or brownish-red. Cervical mucus increases relatively, and the discharge contains necrotic decidua, vaginal secretions, and bacteria—but remains odorless.

3. Bloody Lochia

Bloody lochia occurs during the first 1–3 days postpartum. It is bright red in color, profuse in volume, and contains abundant blood, mucus, and necrotic endometrial tissue. It has a characteristic bloody odor but no foul smell, and both its color and composition change progressively over time. Prolonged bloody lochia lasting more than two weeks often suggests poor healing at the placental implantation site or retained placental or fetal membrane fragments.

The above outlines the typical duration of lochia following vaginal delivery. We hope this information is helpful to you.