If Chapter 13 is “How labor works,” Chapter 14 is “How the mother’s body recovers after birth.” It explains the remarkable physiologic changes that occur in the first hours, days, and weeks postpartum and helps you distinguish normal recovery from warning signs that require intervention.
For a midwife, this is a high-priority chapter, since much maternal morbidity and mortality occurs in the postpartum period.
Chapter 14 – The Puerperium
- Read Coad, Anatomy & Physiology for Midwives, 4th edition, chapter 14.
- Write out your answers to Coad, Chapter Case Study, page 420.
- Create a Coad “Chapter 14 Study Sheet.” Include the following:
Learning Goals
□ Explain the physiologic processes that control postpartum hemostasis.
□ Describe normal postpartum physiologic changes.
□ Explain uterine involution.
□ Describe normal postpartum healing and recovery.
□ Recognize common postpartum discomforts.
□ Recognize abnormal postpartum conditions requiring evaluation.
Essential Vocabulary
General
- Puerperium
- Postpartum
- Involution
- Subinvolution
- Lochia
- Afterpains
Hemostasis
- Third stage of labor
- Hemostasis
- Uterine atony
- Oxytocin
- Placental site
- Myometrial contraction
Lochia
- Lochia rubra
- Lochia serosa
- Lochia alba
Breastfeeding
- Colostrum
- Lactogenesis
- Milk “coming in”
- Engorgement
- Let-down reflex
Perineum
- Perineal trauma
- Hematoma
- Episiotomy
- Pelvic floor
Pathology
- Postpartum hemorrhage (PPH)
- Endometritis
- Mastitis
- Venous thromboembolism (VTE)
- Postpartum depression
Draw
1. Uterine Involution
Birth
↓
Fundus at umbilicus
↓
Descends ~1 cm/day
↓
Pelvic organ by 2 weeks
↓
Near pre-pregnancy size by ~6 weeks2. Lochia Progression
Draw a simple timeline.
Rubra
↓
Serosa
↓
AlbaThen write:
- Rubra = red
- Serosa = pink/brown
- Alba = yellow-white
3. Hemostasis
Placenta delivers
↓
Uterus contracts
↓
Blood vessels compressed
↓
Bleeding stopsThis is one of the most important postpartum diagrams.
Systems I Must Know
| System | Major Changes |
|---|---|
| Uterus | Involution and hemostasis |
| Cervix | Gradual closure |
| Vagina | Healing and restoration |
| Perineum | Tissue repair |
| Breasts | Lactation begins |
| Cardiovascular | Fluid shifts and diuresis |
| Renal | Increased urine output |
| Endocrine | Sudden fall in estrogen and progesterone; prolactin predominates if breastfeeding |
Processes I Must Understand
- Hemostasis after placental delivery
- Uterine involution
- Lochia progression
- Lactogenesis
- Hormonal changes
- Fluid shifts
- Emotional adjustment
- Tissue healing
Midwifery Connections
| Concept | Why a Midwife Cares |
|---|---|
| Firm uterus | Prevents postpartum hemorrhage |
| Lochia | Monitors healing and infection |
| Breastfeeding | Supports maternal and neonatal health |
| Perineal healing | Comfort and infection prevention |
| Bladder function | Full bladder can inhibit uterine contraction |
| Emotional wellbeing | Early recognition of postpartum mood disorders |
| Family bonding | Supports successful transition to parenthood |
Clinical Connections
Be able to explain:
- Why the uterus must remain firm after birth.
- Why oxytocin is so important in the immediate postpartum period.
- Why breastfeeding often causes afterpains (nipple stimulation increases oxytocin release).
- Why women experience heavy urination and sweating during the first postpartum days (mobilization of excess pregnancy fluid).
- Why lochia changes color over time.
- Why a boggy uterus is concerning.
- Why fever is never considered a normal postpartum finding after the first 24 hours.
- Why early ambulation reduces thromboembolism risk.
Things Worth Memorizing
Lochia
Know the sequence:
- Rubra
- Serosa
- Alba
Uterus
Normal:
- Firm
- Midline
- Descending daily
Abnormal:
- Boggy
- Enlarged
- Tender
- Rising instead of descending
Hormones
After birth:
- Estrogen ↓
- Progesterone ↓
- Oxytocin ↑ (especially with breastfeeding)
- Prolactin ↑ (if breastfeeding)
Breastfeeding
Understand:
- Colostrum
- Milk production
- Let-down reflex
Questions I Should Answer Without Looking
- What is the puerperium?
- What causes postpartum hemorrhage?
- What is uterine involution?
- How does oxytocin help after birth?
- What are the stages of lochia?
- Why do breastfeeding mothers often experience afterpains?
- What findings suggest postpartum infection?
- What is mastitis?
- Why is early ambulation encouraged?
- What emotional changes are expected versus concerning?
Compendium Entry
This chapter deserves six pages in your Midwifery Compendium.
Page 1 – Immediate Postpartum Physiology
- Third stage of labor
- Hemostasis
- Oxytocin
- Uterine contraction
- Placental site healing
Page 2 – Uterine Involution
Include:
- Fundal height changes
- Daily descent
- Normal involution timeline
- Factors that delay involution (e.g., retained placental tissue, infection, overdistended uterus)
Page 3 – Lochia
Create a table:
| Stage | Appearance | Typical Timing* |
|---|---|---|
| Rubra | Bright red | Early postpartum |
| Serosa | Pink/brown | Intermediate phase |
| Alba | Cream/white | Later postpartum |
*Remember that timing varies among women; color and amount should be interpreted in the context of the overall clinical picture.
Page 4 – Breastfeeding Physiology
Include:
- Colostrum
- Milk production
- Oxytocin
- Prolactin
- Let-down reflex
- Engorgement
- Common breastfeeding challenges
Page 5 – Normal Recovery vs. Warning Signs
| Normal | Needs Evaluation |
|---|---|
| Firm uterus | Boggy uterus |
| Gradual decrease in lochia | Heavy bleeding or large persistent clots |
| Mild afterpains | Severe persistent abdominal pain |
| Mild perineal soreness | Expanding hematoma or wound separation |
| Emotional fluctuations (“baby blues”) | Persistent depression, suicidal thoughts, or psychosis |
| Mild breast fullness | Localized painful redness with fever (mastitis) |
Page 6 – Postpartum Assessment
Use the classic BUBBLE-HE framework:
- B – Breasts
- U – Uterus
- B – Bladder
- B – Bowels
- L – Lochia
- E – Episiotomy/Perineum
- H – Homan’s/signs of thromboembolism (note that Homan’s sign itself is no longer considered reliable; focus on leg pain, swelling, warmth, and redness)
- E – Emotional status
This provides a structured way to remember a complete postpartum assessment.
Quick Reference Cards
This chapter naturally becomes a series of practical reference cards:
- Immediate Postpartum Assessment
- Uterine Involution
- Lochia
- Normal Fundal Findings
- Boggy Uterus
- Postpartum Hemorrhage
- Breastfeeding Hormones
- Lactogenesis
- Mastitis
- Endometritis
- Postpartum Mood Disorders
- Venous Thromboembolism
- BUBBLE-HE Assessment
One study technique I’d especially recommend
As a future home birth midwife, organize this chapter around the first six weeks after birth, asking one question at each stage:
“What should I expect to be normal today?”
For example:
| Time | Primary Focus |
|---|---|
| First hour | Hemostasis, uterine tone, maternal vital signs, newborn transition |
| First 24 hours | Bleeding, bladder function, breastfeeding initiation, bonding |
| Days 2–4 | Milk coming in, fluid shifts, increasing activity, continued uterine involution |
| Week 1 | Lochia progression, perineal healing, infant feeding, emotional adjustment |
| Weeks 2–6 | Ongoing involution, healing, establishment of breastfeeding, pelvic floor recovery, emotional wellbeing |
This timeline mirrors how postpartum care is actually practiced. Instead of remembering isolated facts, you’ll learn to anticipate what physiologic changes should be occurring at each stage and recognize when recovery is not following the expected course. That kind of chronological thinking becomes invaluable during postpartum home visits.
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