Baby isn't gaining weight: when should I worry?

I understand a parent's worry very well when something like this happens — of course you'd feel anxious.

First, know that healthy babies don't gain weight at the same rate every month. Between 6-12 months, as activity increases, a natural slowing is common. But if the curve drops noticeably — meaning it falls below its own two major growth lines, or shows decline on two visits in a row — that needs evaluation.

What you can do:

• Keep track of how many times your baby nurses/feeds and their wet diapers and stools daily. Fewer than 6 wet diapers is concerning.
• If you've started solids (≥6 months), review portions and variety. Adding energy-dense foods (avocado, yogurt, egg yolk) can help.
• If breastfeeding, pay attention to your own nutrition and fluid intake. Stress and fatigue affect milk production.

When to see the doctor: If the weight curve drops on two visits in a row, if wet diaper output decreases, if there's fussiness or sleepiness, or if the baby seems uncomfortable, see your pediatrician this week. The doctor will do a physical exam, review feeding history, and if needed, run simple tests to clarify what's happening.