Puerperium: Involution, Lochia, Breastfeeding, Postnatal Care & Complications
Key Takeaways
The puerperium lasts 6 weeks (42 days) after delivery, during which the uterus shrinks from about 1,000 g to about 50–60 g.
The fundus descends about 1 cm (one finger-breadth) a day and is usually no longer palpable abdominally by 10–14 days after delivery.
Lochia changes from rubra (days 1–4) to serosa (days 5–9) to alba (from about day 10, sometimes lasting until 6 weeks); foul-smelling lochia suggests infection.
Good breastfeeding attachment shows the chin touching the breast, the mouth wide open, the lower lip turned out and more areola visible above the mouth than below.
Postpartum blues affect most mothers in the first week and settle within about 2 weeks, while postpartum psychosis is a psychiatric emergency.
The puerperium is the period from delivery of the placenta until the reproductive organs return almost to their pre-pregnant state—about 6 weeks (42 days). Many maternal deaths from haemorrhage, sepsis and hypertensive disorders happen in this window, so postnatal nursing is a high-yield midwifery topic.
1. Physiological Changes
Involution of the uterus
| Time after delivery | Fundal height (approximate) | Uterine weight |
|---|---|---|
| Immediately | At or just below the umbilicus | About 1,000 g |
| End of 1st week | Midway between umbilicus and symphysis | About 500 g |
| 10–14 days | Not palpable above the symphysis pubis | About 300 g |
| 6 weeks | Normal pelvic organ | About 50–60 g |
The fundus descends roughly 1 cm (one finger-breadth) each day. Measure it after the mother empties her bladder, because a full bladder pushes the uterus up and to the right and imitates subinvolution.
Subinvolution (a large, soft, boggy uterus) suggests retained products, infection or fibroids and may cause secondary haemorrhage.
Lochia
| Type | Days | Colour and content |
|---|---|---|
| Lochia rubra | 1–4 | Red; blood, decidua, fetal membranes |
| Lochia serosa | 5–9 | Pinkish-brown; less blood, more serum and leucocytes |
| Lochia alba | From about day 10 (may persist to 6 weeks) | Yellowish-white; leucocytes, mucus, epithelial cells |
Warning signs: foul smell (infection), return to bright red bleeding after it had become serosa or alba, large clots, or soaking a pad within an hour.
Other changes
- Cervix and vagina: the external os becomes a transverse slit; rugae reappear by about 3 weeks.
- Afterpains: cramps from uterine contractions, stronger in multiparas and during breastfeeding (oxytocin release).
- Urinary system: marked diuresis in the first 2–3 days; retention is common after prolonged labour or perineal pain.
- Vital signs: a slight temperature rise (below 38 °C) in the first 24 hours can occur; fever of 38 °C or higher needs evaluation. A pulse above 100/min may signal bleeding or infection.
- Weight: about 5–6 kg is lost at delivery and more through diuresis.
- Menstruation returns at about 6–8 weeks in non-lactating mothers and later in exclusively breastfeeding mothers, but ovulation can precede the first period.
2. Breastfeeding
- Start within 1 hour of birth; colostrum (days 1–3) is rich in protective IgA and acts as a mild laxative.
- Exclusive breastfeeding for 6 months, then complementary feeding with breastfeeding continued for 2 years or beyond.
- Hormones: prolactin makes milk (production reflex); oxytocin ejects it (let-down reflex). Pain, anxiety and fatigue inhibit let-down.
Signs of good attachment (WHO/UNICEF)
- The baby's chin touches the breast.
- The mouth is wide open.
- The lower lip is turned outward.
- More areola is visible above the baby's mouth than below.
Effective suckling is slow and deep with pauses, and the mother has no nipple pain. Poor attachment causes sore, cracked nipples and engorgement.
3. Postnatal Care
Visit schedule in India
- Stay in the facility for at least 48 hours after a normal delivery.
- Postnatal check-ups on day 3, day 7 and at 6 weeks after delivery.
- ASHA home visits under Home-Based Newborn Care (HBNC): days 3, 7, 14, 21, 28 and 42 for institutional births (plus day 1 for home births).
What to check at each visit
| Area | Assessment and care |
|---|---|
| Vital signs | Temperature, pulse, BP (postpartum preeclampsia can appear up to 6 weeks) |
| Uterus | Fundal height, firmness, tenderness |
| Lochia | Amount, colour, odour |
| Perineum | Episiotomy or tear for pain, redness, discharge (REEDA: redness, edema, ecchymosis, discharge, approximation) |
| Breasts | Engorgement, cracked nipples, lumps |
| Bladder and bowel | Voiding within 6 hours of delivery; constipation |
| Legs | Calf pain or swelling (deep vein thrombosis) |
| Mood | Tearfulness, anxiety, sleep, thoughts of self-harm |
| Newborn | Feeding, weight, cord, jaundice, danger signs |
Advice and supplements
- Iron-folic acid for 180 days and calcium for 6 months after delivery.
- Nutritious diet with about 600 extra kcal/day during the first 6 months of lactation (ICMR-NIN 2020).
- Perineal hygiene; sitz baths after 24 hours if prescribed.
- Pelvic floor (Kegel) exercises, deep breathing and early ambulation.
- Rh-negative mother with an Rh-positive baby: anti-D immunoglobulin within 72 hours of delivery.
- Danger signs to report: heavy bleeding, fever, foul lochia, severe headache or blurred vision, convulsions, breathlessness, calf pain, breast redness, or thoughts of harming herself or the baby.
4. Postpartum Family Planning
| Method | When it can start |
|---|---|
| Lactational Amenorrhoea Method (LAM) | Valid only if all three apply: full or nearly full breastfeeding day and night, no return of periods, and the baby is under 6 months |
| Post-partum IUCD (PPIUCD) | Within 48 hours of delivery (ideally within 10 minutes of placental delivery) or at caesarean section; otherwise after 6 weeks |
| Progestin-only pill, injectable (Antara) | From 6 weeks if breastfeeding |
| Combined oral pill | Avoid in the first 6 months of breastfeeding (it reduces milk) |
| Female sterilization | Within 7 days of delivery or after 6 weeks |
| Condoms | Any time |
5. Complications of the Puerperium
Puerperal sepsis
WHO defines it as infection of the genital tract between rupture of membranes or labour and the 42nd day after delivery, with fever plus at least one of: pelvic pain, abnormal vaginal discharge, foul-smelling discharge, or delayed reduction in uterine size. Risk factors include prolonged labour, prolonged rupture of membranes, repeated vaginal examinations, manual removal of the placenta and anaemia. Management: cultures, early broad-spectrum antibiotics, fluids, and removal of retained products.
Breast problems
| Problem | Features | Nursing management |
|---|---|---|
| Engorgement | Both breasts full, hard, painful, around day 3–5 | Frequent feeding on demand, correct attachment, warm compress before and cold compress after feeds, express excess milk |
| Cracked nipples | Pain during feeds | Correct attachment; apply expressed hindmilk; continue feeding |
| Mastitis | Painful, red, wedge-shaped area, fever | Continue breastfeeding or expressing, rest, fluids, analgesics, antibiotics as prescribed |
| Breast abscess | Fluctuant tender lump | Incision and drainage or aspiration; feed from the other breast |
Secondary postpartum haemorrhage
Excessive bleeding after 24 hours, usually from retained placental tissue or infection; it may need uterotonics, antibiotics and evacuation.
Thromboembolism
Pregnancy is hypercoagulable. Early ambulation, hydration and leg exercises reduce deep vein thrombosis.
Postpartum mood disorders
| Condition | Onset and frequency | Features | Action |
|---|---|---|---|
| Postpartum (baby) blues | Days 3–5; very common (about half or more of mothers) | Tearfulness, irritability, mood swings | Reassurance and support; resolves within about 2 weeks |
| Postpartum depression | Within weeks to months; about 1 in 10 mothers or more | Persistent low mood, anhedonia, guilt, poor bonding | Screening, counselling, treatment; refer |
| Postpartum psychosis | Usually within the first 2–4 weeks; about 1–2 per 1,000 births | Confusion, hallucinations, delusions, risk to self and baby | Psychiatric emergency: never leave mother alone with the baby; urgent referral |
On the fourth postnatal day, the nurse palpates the fundus well above its expected level and slightly to the right of the midline. What is the most appropriate first action?
Record the finding as normal involution for the fourth day
Massage the uterus vigorously for 15 minutes before anything else
Ask her to empty her bladder, then reassess the fundus
Start an oxytocin infusion immediately and inform the doctor
A mother on postnatal day 7 reports pinkish-brown vaginal discharge without odour. How should the nurse interpret this?
Lochia alba, which indicates delayed healing
Lochia rubra, which is abnormal at this stage
Secondary postpartum haemorrhage requiring evacuation
Lochia serosa, which is normal for this stage
A breastfeeding mother has a painful, red, wedge-shaped area on one breast and a temperature of 38.4 °C. What advice is correct?
Keep feeding or expressing from the affected breast during treatment
Bind the breasts tightly and restrict fluids to suppress milk production
Apply ice continuously and avoid emptying the breast until the redness fades
Stop breastfeeding from both breasts until the fever settles completely
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