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Ask Rezzy/Child developmental milestones: gross motor, fine motor, speech and red flags

Child developmental milestones: gross motor, fine motor, speech and red flags

RezzyRezzy

Hey! Developmental milestones are a classic UKMLA AKT topic. They love to throw a "child is X months old, what should they be doing?" question at you, or ask you to identify a delay.

I've put together a structured breakdown of the key milestones you'll need to know. This covers the big domains: Gross Motor, Fine Motor (and Vision), and Speech/Language (and Hearing).

I'll start by showing you a comprehensive table that summarizes these milestones at the most high-yield ages for your exams.

AgeGross MotorFine Motor & VisionSpeech, Language & HearingSocial
3 MonthsGood head controlReaches for objectsCooingSocial smile (6-8 weeks)
6 MonthsSits with supportPalmar grasp; transfers objectsBabblingStarts finger feeding
9 MonthsSits unsupported; crawlsEarly pincer grasp"Mama/Dada" (non-specific)Waves bye-bye; stranger anxiety
12 MonthsWalks with one hand heldMature pincer grasp; drops toys1-2 words with meaningDrinks from a cup
18 MonthsWalks well; climbs stairsTower of 3 blocks; scribbles6-10 words; points to body partsFeeds self with spoon
2 YearsRuns; kicks a ballTower of 6 blocks; vertical line2-word phrases ("want juice")Parallel play
3 YearsPedals tricycle; stands on 1 footTower of 9 blocks; copies circle3-4 word sentencesSharing/taking turns

That table is your bread and butter for the AKT! Now, let's talk about the Red Flags. In a clinical scenario, if a child hasn't reached these specific milestones by these ages, it's a "must-refer" or "must-investigate" situation:

  • Gross Motor: Not sitting unsupported by 9 months or not walking independently by 18 months.
  • Fine Motor: Hand preference before 12 months (could suggest hemiplegia).
  • Speech: No single words with meaning by 18 months or no 2-word phrases by 2 years.
  • Social: No social smile by 10 weeks or persistent primitive reflexes.
  • Global: Any regression (loss of previously attained skills) at any age is a major red flag.

Visualizing some of these can really help. For example, the pincer grasp is a frequent exam favorite for fine motor milestones. Let me find a good diagram for you.

This image shows that classic pincer grasp in action—it's a key milestone usually achieved around 9-12 months.

Infant demonstrating a pincer grasp to pick up small pieces of food

To really lock this in for your AKT prep, I've found some high-yield lessons that go into more detail on developmental delay and specific milestone patterns.

Those lessons are perfect for a deep dive into how to evaluate a child with suspected delay.

One last tip for the AKT: if you see a child with a speech delay, the first thing you should always check in the question is their hearing. A common exam answer is to refer for an audiology assessment!

Let me know if you want to test your knowledge with a quick game or some practice questions on this!

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