What are the main puppy growth stages?
Written by
John Williams
Reviewed by
Prof. Henry Webster, Ph.D.As your puppy progresses through six growth stages, you need to make specific adjustments to the way you care for your puppy during each of these phases, as his body and behavior undergo distinct changes.
Neonatal Stage (0-2 weeks)
- Eyes and ears remain closed with minimal movement
- Complete dependence on mother for warmth and nutrition
- Critical antibody transfer through colostrum feeding
- First worming treatment required at 14 days
Transitional Stage (2-4 weeks)
- Eyes open and baby teeth begin emerging
- First attempts at standing and walking develop
- Initial social interactions with littermates start
- Soft food introduction alongside mother's milk
Socialization Stage (3-12 weeks)
- Rapid sensory development and fear period onset
- Adult teeth form beneath baby teeth
- Essential vaccination series begins at 6 weeks
- Controlled exposure to people, animals, environments
The size of a breed has a significant impact on the rate of development. Smaller breeds (such as Beagles) reach maturity early and continue to eat small quantities regularly. Larger breeds (such as Mastiffs) mature slowly and require strict attention to calcium intake to avoid growth issues. Your veterinarian can help you determine growth timelines to avoid excess stress on joints and malnourishment.
Steer clear of the common error of separating puppies before eight weeks, as this prohibits bite inhibition learning. Monitor vaccination schedules that correspond with their development phases, track milestones for veterinarian consultations to encourage timely intervention during critical junctures.
Developmentally appropriate stage-specific care creates a healthy adult life. Adjust the portion sizes at varying growth stages. Change training styles due to cognitive capabilities at each stage. Your attention builds a confident partner to succeed through the developmental process.
Read the full article: Puppy Growth Stages: Complete Development Guide
