Week 18Second Trimester

Breast Changes & Growth at Week 18

Breast enlargement, darkening, visible veins

📆 Second Trimester Overview

Continued growth, veins visible, colostrum may leak

🔍 What Causes Breast Changes & Growth at Week 18?

  • Estrogen and progesterone
  • Milk ducts developing
  • Increased blood flow
  • Fat accumulation
  • Prolactin stimulating milk production
  • Breast tissue expanding

Normal Signs

  • Growing 1-3 cup sizes
  • Darkening areolas
  • Visible blue veins
  • Colostrum leaking
  • Montgomery tubercles

Concerning Signs

  • Hard, painful lump
  • Red, hot area
  • Severe pain one breast
  • Bloody nipple discharge
  • Skin dimpling

💊 Relief Strategies

  • Wear supportive maternity bras
  • Get fitted professionally
  • Sleep in comfortable bra
  • Use breast pads for leaking
  • Avoid underwire bras
  • Gentle breast massage
  • Keep breasts clean and dry

🏥 When to Call Your Doctor

Contact your healthcare provider if you experience:

  • Hard lump that doesn't move
  • Red, hot, inflamed area
  • Bloody discharge
  • Severe pain in one breast
  • Skin changes or dimpling
  • Inverted nipple that wasn't before