Master Age 4 Months - Developmental Milestones with Picmonic for Medicine

With Picmonic, facts become pictures. We've taken what the science shows - image mnemonics work - but we've boosted the effectiveness by building and associating memorable characters, interesting audio stories, and built-in quizzing.

Age 4 Months - Developmental Milestones

(4) Leaf-clover and Month-moon
By four months of age, babies’ eyesight and head control continue to improve. At this age, babies are usually able to track objects past midline and also begin to reach for objects with their hands. At this age, babies are also often able to hold a rattle. Babies are also able to raise their body on their hands when on their stomach, and this motion also helps them to roll from stomach to back. However, babies typically cannot roll from back to stomach until six months. At this age, babies’ use of voice continues to evolve and babies typically begin to babble, which is pretty much adding consonant sounds to cooing.
Sits With Support
Sitting-up with Support

By four months of age, babies should be able to hold their heads steady while sitting with support.

Rooting Reflex Disappears
Roots Disappearing

The rooting reflex is triggered when the baby's cheek is stroked. This causes the baby to turn and open its mouth, making sucking or “rooting” motions to assist with breastfeeding. This reflex should disappear by four months of age.

Moro Reflex Disappears
Moro-monster Disappearing

The Moro reflex, also known as the startle reflex, presents as an involuntary response that occurs when an infant feels as if it’s falling. The Moro reflex disappears in most infants by around 4 months of age, though it may be present in a minority of infants through 6 months.

Reaches Across Midline

Most children at four months old are able to reach across midline.

Turns to Voice
Turnip with Voice

By four months of age, an infant will orient to voices, turning towards the source of the sound.


Babies can be expected to laugh by the time they are four months of age.

Enjoys Looking Around
Happy-face Glasses

At four months old, infants enjoy looking around as their vision has improved and they can start distinguishing between shades, as well as being able to follow moving objects.

Take the Age 4 Months - Developmental Milestones Quiz

Picmonic's rapid review multiple-choice quiz allows you to assess your knowledge.

It's worth every penny

Our Story Mnemonics Increase Mastery and Retention

Memorize facts with phonetic mnemonics

Unforgettable characters with concise but impactful videos (2-4 min each)

Ace Your Medicine (MD/DO) Classes & Exams with Picmonic:

Over 1,270,000 students use Picmonic’s picture mnemonics to improve knowledge, retention, and exam performance.

Choose the #1 Medicine (MD/DO) student study app.

Picmonic for Medicine (MD/DO) covers information that is relevant to your entire Medicine (MD/DO) education. Whether you’re studying for your classes or getting ready to conquer the USMLE Step 1, USMLE Step 2 CK, COMLEX Level 1, or COMLEX Level 2, we’re here to help.

Works better than traditional Medicine (MD/DO) flashcards.

Research shows that students who use Picmonic see a 331% improvement in memory retention and a 50% improvement in test scores.