Approximately half of 18-month-old children are able to run and climb stairs, but they would not be expected to jump or throw a ball overhand until approximately 2 years of age. However, at 18 months, children should be able to put a block in a cup and scribble, and most can build a tower of at least 2 blocks.
- Normal gross motor skills, delayed fine motor skills.
1. Behrman RE, Kliegman RM, Jenson HB, editors. Nelson textbook of pediatrics. 16th ed. Philadelphia: WB Saunders Co; 2000.
2. Gunn VL, Nechyba C, editors. The Harriet Lane handbook: a manual for pediatric house officers. 16th ed. Philadelphia: Mosby; 2002.
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