1. What is Newborn Weight Loss Percentage?

The newborn weight loss percentage calculates how much weight a baby has lost compared to their birth weight. This is an important metric in neonatal care as excessive weight loss can indicate feeding problems or other health issues.

2. How Does the Calculator Work?

The calculator uses the following equation:

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 original birth weight has been lost.

3. Importance of Monitoring Weight Loss

Details: Normal newborns typically lose 5-7% of their birth weight in the first few days. Losses greater than 10% may require medical evaluation and intervention.

4. Using the Calculator

Tips: Enter birth weight and current weight in kilograms. Both values must be positive numbers. The calculator will show the percentage of weight lost since birth.

5. Frequently Asked Questions (FAQ)

Q1: What is normal weight loss for a newborn?
A: Most newborns lose 5-7% of their birth weight in the first 3-4 days, then regain it by 10-14 days.

Q2: When should I be concerned about weight loss?
A: Consult a pediatrician if weight loss exceeds 10% or if baby isn't regaining weight by day 5.

Q3: How often should newborns be weighed?
A: Typically at birth, then at 24 hours, 72 hours, and at 1 week. More frequent monitoring may be needed for high-risk infants.

Q4: Does breastfeeding affect weight loss?
A: Breastfed babies may lose slightly more weight initially but should follow similar patterns of regain.

Q5: What factors can cause excessive weight loss?
A: Inadequate milk intake, feeding difficulties, jaundice, or underlying medical conditions.