Introduction
Newborn skin differs significantly from adult skin in structure and function, serving as a critical barrier against infection, fluid loss, and thermal instability. Care must be tailored to gestational age.
Anatomical & Physiological Differences
| Feature | Newborn (Term/Preterm) | Adult | Implication |
|---|---|---|---|
| Stratum Corneum | Thin (3-4 layers in preterm) | Thick (>10-20 layers) | High permeability, risk of toxicity |
| D-E Junction | Flat, fewer fibrils | Rete ridges | Risk of stripping/blistering |
| Acid Mantle (pH) | Neutral () at birth | Acidic () | bacterial overgrowth risk initially |
| Vernix Caseosa | Present | Absent | Natural moisturizer & cleanser |
General Principles of Skin Care
1. Vernix Caseosa
- Action: Do not remove vigorously.
- Benefit: Provides insulation, acts as a natural cleanser, and assists in acid mantle formation.
2. Bathing Practices (WHO Guidelines)
- Timing: Delay first bath for at least 24 hours (prevents hypothermia and maintains vernix).
- Frequency: 2–3 times/week is sufficient; daily bathing is not recommended in cool climates.
- Agents: Use warm water alone or Syndet bars (neutral/slightly acidic pH). Avoid alkaline soaps which destroy the acid mantle.
3. Cord Care
- Standard: Dry Cord Care (keep clean and dry).
- Indication for Antiseptic: In high-mortality settings or unhygienic births, 4% Chlorhexidine application is recommended to prevent omphalitis.
- Avoid Povidone-Iodine (risk of transient hypothyroidism).
4. Diaper Area Care (ABCD Approach)
- A - Air: Expose to air frequently.
- B - Barrier: Use zinc oxide or petrolatum based pastes if erythema is present.
- C - Cleansing: Clean from front to back. Use water or alcohol-free wipes.
- D - Diaper: Change frequently (q2-4h).
Care of Preterm Skin (Special Considerations)
1. Transepidermal Water Loss (TEWL)
- Preterms have very high TEWL due to immature keratinization.
- Management: Nurse in incubators with high humidity (up to 80-90% in first week for ELBW).
2. Emollients & Massage
- Oil Massage: Traditional oil massage (e.g., Sunflower oil, Coconut oil) improves barrier function and reduces risk of sepsis (prevent entry of pathogens).
- Technique: Gentle strokes; improves vagal tone and weight gain (Field’s technique).
- Restriction: Avoid mustard oil (can cause irritation).
3. Adhesive Removal
- Use pectin-based barriers beneath adhesives.
- Remove slowly using water or mineral oil to prevent epidermal stripping.
Summary of Dont’s
- No vigorous rubbing of vernix.
- No alkaline soaps.
- No boric acid or salicylic acid (high absorption risk).