PUERPERIUM AND LACTATION

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PUERPERIUM AND LACTATION
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PUERPERIUM

• Minimum interval from parturition until
  conception
• Myometrial contractions expulsion of lochia -
  return to normal size
• Endometrial repair
• Elimination of bacterial contamination
• Resumption of ovarian activity

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Mammary gland development

• Embryological development Mammary ridges to
  mammary buds to canalization
• Postnatal to puberty isometric development

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Mammary gland development

• Puberty to Pregnancy progesterone alveolar
  development estrogen- duct development with
  prolactin and growth hormone
• Pregnancy continued duct and alveolar
  development

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Lactogenesis and Involution

• Milk synthesis dependant on prolactin, adrenal
  cortical hormones, placental lactogen
• Involution pressure atrophy of secretory cells
• Regeneration during the next pregnancy

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