1. What is Newborn Weight Loss Percentage?

The newborn weight loss percentage calculation measures how much weight a baby has lost since birth, expressed as a percentage of the birth weight. This is particularly important in breastfeeding newborns to monitor adequate milk intake.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• \( \text{Birth Weight} \) — Baby's weight at birth (kg)
• \( \text{Current Weight} \) — Baby's current weight (kg)

Explanation: The formula calculates what percentage of the birth weight has been lost by comparing the current weight to the birth weight.

3. Importance of Weight Loss Monitoring

Details: Monitoring weight loss helps identify potential breastfeeding issues. While some weight loss is normal (5-7% in first few days), excessive loss (>10%) may indicate feeding problems requiring intervention.

4. Using the Calculator

Tips: Enter birth weight and current weight in kilograms. Both values must be positive numbers. Weights should be measured using the same scale for accuracy.

5. Frequently Asked Questions (FAQ)

Q1: What is normal newborn weight loss?
A: 5-7% loss in first 3-4 days is typical for breastfed babies. Most regain birth weight by 10-14 days.

Q2: When should I be concerned about weight loss?
A: If loss exceeds 7% in first 72 hours or 10% at any time, consult a healthcare provider.

Q3: How often should newborns be weighed?
A: First weight at 24-72 hours after birth, then as needed based on feeding assessment.

Q4: Does this apply to formula-fed babies?
A: Formula-fed babies typically lose less weight (3-4%) and regain birth weight faster.

Q5: What affects weight loss accuracy?
A: Scale calibration, time of day, clothing/diaper weight, and recent feeding can all affect measurements.