1. What is Newborn Weight Loss?

Newborn weight loss refers to the normal physiological weight reduction that occurs in the first few days after birth. Most newborns lose between 5-10% of their birth weight before starting to regain weight.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• \( Birth\ Weight \) — The baby's weight at birth in grams
• \( Current\ Weight \) — The baby's current weight in grams

Explanation: The calculator also computes the percentage weight loss by dividing the absolute loss by the birth weight and multiplying by 100.

3. Importance of Monitoring Weight Loss

Details: Monitoring newborn weight loss helps assess feeding adequacy and identify potential problems. Excessive weight loss (>10%) may indicate feeding difficulties or other medical issues.

4. Using the Calculator

Tips: Enter birth weight and current weight in grams. Both values must be positive numbers. For accuracy, weights should be measured using the same scale.

5. Frequently Asked Questions (FAQ)

Q1: How much weight loss is normal for a newborn?
A: Most newborns lose 5-7% of birth weight, with up to 10% considered normal. Losses >10% warrant evaluation.

Q2: When should a newborn regain birth weight?
A: Most babies regain birth weight by 10-14 days of age. Formula-fed babies may regain slightly faster.

Q3: How often should newborns be weighed?
A: Typically weighed at birth, 24-48 hours after birth, and at the first pediatric visit (3-5 days old).

Q4: What causes excessive weight loss?
A: Possible causes include inadequate milk intake, breastfeeding difficulties, or medical conditions.

Q5: Should I be concerned about slow weight gain?
A: Consult your pediatrician if weight gain is <20g/day after the first week or if concerns arise.