1. What is Weight Loss in Newborns?

Weight loss in newborns is a normal physiological process that occurs in the first days after birth. Most newborns lose between 5-10% of their birth weight in the first week before starting to gain weight.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• Birth Weight — The newborn's weight at birth (grams)
• Current Weight — The newborn's current weight (grams)

Explanation: The difference between birth weight and current weight represents the total weight loss.

3. Importance of Monitoring Weight Loss

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

4. Using the Calculator

Tips: Enter birth weight and current weight in grams. Both values must be positive numbers. The calculator will display the absolute weight loss in grams.

5. Frequently Asked Questions (FAQ)

Q1: What is normal weight loss for a newborn?
A: Most newborns lose 5-7% of birth weight, with up to 10% considered normal. Loss >10% may require evaluation.

Q2: When should a newborn regain birth weight?
A: Typically by 10-14 days of age, though breastfed babies may take slightly longer.

Q3: How often should newborns be weighed?
A: In hospital daily, then at pediatric visits (3-5 days after discharge, then as recommended).

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

Q5: Should weight loss percentage be calculated?
A: Yes, percentage loss (weight loss ÷ birth weight × 100) is often more meaningful than absolute grams.