15 Months
Here's what's happening at this age - milestones, common concerns, nutrition, sleep, and vaccines.
Developmental Milestones
Based on the 15 Months checkpoint
Gross Motor
- Walking Independently - Your toddler walks on their own without holding onto furniture or your hand.
- Stooping and Recovering - Your toddler bends down to pick something up off the floor and stands back up without falling.
Fine Motor
- Stacking Two Blocks - Your toddler places one block on top of another to build a small tower.
- Self-Feeding with Fingers - Your toddler feeds themselves finger foods, picking up pieces of food and putting them in their mouth.
- Scribbling (Emerging) - Your toddler holds a crayon or marker and makes marks on paper - or on your walls.
Language
- Using 3 to 5 Words - Your toddler uses about 3 to 5 words regularly, though they may not say them clearly.
- Following Simple Commands - Your toddler follows simple one-step directions, especially when you use a gesture too, like "bring me the ball" or "put it in the box."
- Looks at Named Objects - When you say the name of a familiar object or person, your toddler looks at it or turns toward them.
Social & Emotional
- Imitating Everyday Actions - Your toddler copies things they see you do around the house, like sweeping, talking on the phone, or feeding a baby doll.
- Showing Affection - Your toddler hugs you, snuggles against you, or gives kisses.
- Exploring with a Caregiver Nearby - Your toddler feels confident exploring their surroundings but checks back with you regularly - looking at you, coming back for a quick touch, then heading out again.
Cognitive
- Using Objects Correctly - Your toddler uses everyday objects the right way - drinking from a cup, brushing their hair, or pushing a toy car along the floor.
- Pointing to Ask for Things or Show Interest - Your toddler points at things to show you something interesting or to tell you what they want.
- Finding Hidden Objects - Your toddler can find a toy you have hidden, even if you moved it from one hiding spot to another while they watched.
Red Flags to Watch For
- !Does not walk or attempt to walk
- !Does not point to show you things or to request
- !Does not use at least 1-2 words
Common Concerns at This Age
Things parents often wonder about around 15 months
My Baby's Belly Looks Swollen
A rounded, slightly protruding belly is completely normal in babies and toddlers due to immature abdominal muscles and t...
Accent vs Speech Disorder in Bilingual Toddlers
When toddlers grow up hearing more than one language, they naturally blend sounds, patterns, and accents from both langu...
My Toddler Is Aggressive Toward Pets
Toddlers being rough with pets is extremely common and almost never reflects true aggression or cruelty. Young children ...
When to Introduce Allergens to Baby
Current guidelines recommend introducing common allergens (peanut, egg, cow's milk products, tree nuts, wheat, soy, fish...
I'm Worried About Lazy Eye (Amblyopia)
Amblyopia (lazy eye) is the most common cause of vision loss in children, affecting about 2-3% of kids. It occurs when o...
My Baby Has an Anal Fissure (Blood When Pooping)
A small streak of bright red blood on the surface of your baby's stool or on the diaper is most commonly caused by an an...
Anaphylaxis Signs in Baby
Anaphylaxis is a severe, potentially life-threatening allergic reaction that affects multiple body systems. In babies, i...
My Baby Has Unequal Pupils
Slight differences in pupil size (anisocoria) can be normal and affect up to 20% of people, including babies. However, i...
Food Readiness
Foods appropriate for 15 months
Banana
Sliced or whole
Avocado
Sliced, cubed, or as guacamole
Sweet Potato
Cubed, mashed, or as fries
Apple
Thin raw slices or cooked
Peas
Whole cooked peas
Oatmeal
Regular oatmeal
Chicken
Small pieces or strips
Salmon
Flaked or as salmon cakes
Allergen: fishYogurt
Any preparation
Allergen: milkEgg
Any well-cooked preparation
Allergen: eggBroccoli
Steamed, roasted, or raw (if tender)
Rice
Any preparation
Peanut Butter
Thin layer on bread or mixed into food
Allergen: peanutTofu
Any preparation
Allergen: soyStrawberry
Halved or whole (for larger berries)
Carrot
Cooked pieces, grated raw
Sleep Needs
12-18 months
12-14 hours
Total sleep per day
10-12 hours
Nighttime sleep
1-2 naps (most transition to 1 nap around 14-18 months)
Naps
Tips for this age
- The 2-to-1 nap transition can be rocky - it takes 2-4 weeks
- If your toddler resists one nap, try a shorter morning nap
- A consistent sleep schedule becomes more important than ever
- Loveys/comfort objects are now safe and can help with sleep
Vaccines
Vaccines due around 15 months
Diphtheria, Tetanus, Pertussis
Protects against three serious diseases: diphtheria, tetanus, and whooping cough.
Every baby develops at their own pace. The ranges here are based on typical development from the CDC, AAP, and WHO. If something feels off or you have questions, trust your instincts and talk to your pediatrician. You know your baby best.