Birth weight should double by which age?

Birth weight should double by which age?

• A. 3 months.
• B. 6 months.
• C. 12 months.
• D. 9 months.

Answer: (B)

Infant growth is rapid and predictable in the first year. Birth weight doubling by about six months reflects this strong, steady gain in the early months. By six months, many babies weigh about twice their birth weight, and by one year they typically weigh about triple their birth weight. This milestone helps clinicians gauge whether nutrition and overall health are on track using standard growth charts. If doubling doesn’t occur around six months, it may prompt a closer look at feeding adequacy, absorption, or underlying health issues.

Infant growth is rapid and predictable in the first year. Birth weight doubling by about six months reflects this strong, steady gain in the early months. By six months, many babies weigh about twice their birth weight, and by one year they typically weigh about triple their birth weight. This milestone helps clinicians gauge whether nutrition and overall health are on track using standard growth charts. If doubling doesn’t occur around six months, it may prompt a closer look at feeding adequacy, absorption, or underlying health issues.