- CDC
- Heart Failure
- Cardiovascular Clinical Consult
- Adult Immunization
- Hepatic Disease
- Rare Disorders
- Pediatric Immunization
- Implementing The Topcon Ocular Telehealth Platform
- Weight Management
- Screening
- Monkeypox
- Guidelines
- Men's Health
- Psychiatry
- Allergy
- Nutrition
- Women's Health
- Cardiology
- Substance Use
- Pediatrics
- Kidney Disease
- Genetics
- Complimentary & Alternative Medicine
- Dermatology
- Endocrinology
- Oral Medicine
- Otorhinolaryngologic Diseases
- Pain
- Gastrointestinal Disorders
- Geriatrics
- Infection
- Musculoskeletal Disorders
- Obesity
- Rheumatology
- Technology
- Cancer
- Nephrology
- Anemia
- Neurology
- Pulmonology
Neonatal Breast Hypertrophy
The bilateral breast hypertrophy seen on a 12-day-old boy's chest began 4 days earlier. This anomaly results from elevated levels of maternal circulating estrogen in late gestation that crosses the placenta and stimulates the baby's breasts. Both sexes are affected equally.
The bilateral breast hypertrophy seen on a 12-day-old boy's chest began 4 days earlier. This anomaly results from elevated levels of maternal circulating estrogen in late gestation that crosses the placenta and stimulates the baby's breasts. Both sexes are affected equally.
"Witches' milk," a nipple discharge, may be associated with breast hypertrophy. Manipulation of the swollen breast can cause irritation and further swelling. One breast may hypertrophy several days before the other. When this occurs, consider acute mastitis, which requires antistaphylococcal antibiotic therapy.
An infant's breasts usually return to normal size within several months to about 1 year. Parental reassurance is the only treatment necessary.
