1. What is Newborn Weight Loss Percentage?

The newborn weight loss percentage measures how much weight a baby has lost compared to their birth weight. It's a crucial indicator of feeding adequacy and overall health in the first days of life.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• \( \text{birth weight} \) — Baby's weight at birth (grams)
• \( \text{current weight} \) — Baby's current weight (grams)

Explanation: The formula calculates the percentage of weight lost relative to the original birth weight.

3. Importance of Monitoring Weight Loss

Details: Monitoring weight loss helps identify feeding problems, dehydration, or other health issues. Most newborns lose 5-7% of birth weight in first few days and regain it by 10-14 days.

4. Using the Calculator

Tips: Enter both weights in grams. Use accurate measurements taken on the same scale. Weights must be greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is normal newborn weight loss?
A: 5-7% loss is typical for vaginal births, up to 10% for C-sections. More than 10% loss may require evaluation.

Q2: When should I be concerned about weight loss?
A: If loss exceeds 10%, if baby isn't regaining by day 5, or if there are signs of dehydration (few wet diapers, lethargy).

Q3: How often should newborns be weighed?
A: Daily in first week if concerns exist, otherwise at pediatric visits (day 3-5 and 2 weeks).

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

Q5: What if my baby loses more than 10%?
A: Consult your pediatrician immediately for feeding assessment and possible supplementation.