About 10% of babies never crawl — they roll, scoot, or go straight to pulling up and walking. Skipping crawling alone is not a cause for concern.
Typical range: 7-10 months, but some babies do not crawl until 12 months or later.
When to discuss with your pediatrician: Not pulling to sit by 9 months, not pulling to stand by 12 months, significant asymmetry in movement, or not showing interest in exploring their environment.