Babies crying with their dad is one of the most common and normal phases of early parenthood. It usually comes down to a strong preference for whichever caregiver spends the most time responding to their needs, combined with developmental stages that make babies wary of anyone who isn’t that person. It doesn’t mean your baby doesn’t love dad, and it doesn’t mean dad is doing something wrong.
How Babies Build a Pecking Order
Starting around six months, babies begin to anticipate how specific caregivers will respond to their distress. They shape their own behavior based on daily interactions. If one parent is consistently the person who feeds, soothes, and responds when the baby is upset, that parent becomes what researchers call the “secure base.” The baby uses that person as a home base for exploring the world and as a source of comfort when something feels wrong.
This isn’t a conscious choice or a reflection of love. It’s a survival instinct. Babies are wired to attach most strongly to the caregiver whose responses they can predict best, because predictability equals safety in an infant’s brain. When dad picks the baby up and the baby cries, what you’re often seeing is the baby signaling “I want the person whose pattern I know best right now.” The more distressed or tired the baby is, the stronger that pull toward the primary caregiver becomes.
Separation Anxiety Makes It Worse
If your baby is between 8 and 18 months, there’s a good chance separation anxiety is amplifying the problem. This phase peaks between 10 and 18 months and typically resolves by age 3. During this window, babies become intensely distressed when separated from their primary caregiver, and being handed to someone else, even dad, can trigger crying as if they’ve been left with a stranger.
Stranger anxiety often layers on top of this. If dad works long hours or travels, the baby may genuinely treat him as less familiar, especially during peak anxiety months. The fear response gets stronger in the presence of anyone who isn’t the go-to comfort person. This doesn’t last. As the baby’s brain matures and they develop a sense of object permanence (understanding that people still exist when out of sight), the intensity fades.
Scent, Voice, and Sensory Familiarity
Babies rely heavily on smell to identify safe people. Mothers who breastfeed carry a particularly strong scent association because the baby spends extended time skin to skin during feeding, and breast milk itself has a distinct smell the baby learns within days of birth. Dad simply doesn’t carry those same olfactory cues, especially in early months. Research confirms that while fathers can recognize their own child’s body odor (and prefer it over unfamiliar children’s scents), the scent bond between mother and baby develops earlier and more intensely due to feeding contact.
Voice matters too, though perhaps not in the way you’d expect. Before puberty, there are no meaningful sex differences in voice pitch, so it’s not that dad’s deeper voice scares the baby. The difference is more about exposure. If mom talks, sings, and soothes more frequently, her voice becomes the one the baby’s nervous system associates with “everything is fine.” Dad’s voice may simply be less rehearsed in the baby’s mental library of comfort sounds.
Dad’s Play Style Can Overwhelm
Fathers and mothers tend to interact with babies differently, and this can contribute to crying. Research on parent-infant play shows that fathers use faster-paced stimulation during interactions, with more playful stimuli per minute and shorter bursts of activity compared to mothers. Paternal care tends to be more stimulatory and physical, while maternal care leans toward affectionate and soothing patterns.
Neither style is better. In fact, stimulatory play from fathers promotes social development and bonding over time. But for a baby who is already tired, hungry, or overstimulated, dad’s more energetic approach can push them past their comfort threshold. If your baby tends to cry specifically during play with dad but is calmer during quiet holding, pacing might be the issue rather than the person.
Some Babies Are Just Cautious
Temperament plays a real role. Some babies are categorized as “slow to warm up” or cautious. These children tend to be fussier, less active, and more likely to withdraw or react negatively to anything that feels new or different. For a cautious baby, even a familiar parent who isn’t the primary caregiver can trigger wariness, especially after a long day at work or a stretch of time apart.
The key with cautious babies is repeated, low-pressure exposure. They need time to observe and acclimate. Pushing them into dad’s arms when they’re already upset usually backfires. Instead, letting them watch dad from a safe distance (like mom’s lap) and gradually increasing proximity works better. Over time, these babies become just as comfortable with both parents, but they need the adjustment period that their temperament demands.
What Helps Dad Build the Bond
The bonding hormone oxytocin isn’t exclusive to mothers. Research shows that baseline oxytocin levels don’t differ between mothers and fathers. What matters is interaction. When fathers engage in skin-to-skin contact with their babies, their oxytocin rises and stays elevated even after the contact ends. The baby’s oxytocin rises too. Meanwhile, cortisol (the stress hormone) drops during these interactions for both parent and child. This means every positive interaction dad has with the baby is physically building the bond at a hormonal level, even if the baby fusses at first.
Practical strategies that help:
- Start with calm moments. Dad should try holding the baby when they’re already content, not when they’re hungry or overtired. Feeding time (with a bottle if applicable) is especially powerful because it mimics the closeness of breastfeeding.
- Build a dad-specific routine. Bath time, a specific song, or a bedtime story that only dad does gives the baby a predictable pattern to attach to. Predictability is what builds the secure base.
- Skin-to-skin contact. Dad holding the baby against bare skin, especially in the early weeks, directly increases oxytocin for both of them and helps the baby learn dad’s scent.
- Slow the pace. Matching the baby’s energy level rather than ramping up stimulation helps avoid overstimulation. Gentle rocking, quiet talking, and slow movements work better than bouncing and tickling during fussy periods.
- Mom should step away. Babies are remarkably good at sensing when the preferred parent is nearby. If mom is in the room, the baby will often escalate crying because they know their “first choice” is available. Giving dad solo time, even 15 to 20 minutes at a stretch, forces the baby to discover that dad is also safe and capable of comfort.
The Transition Matters
How you hand the baby from one parent to the other makes a surprising difference. Abrupt transfers, where mom suddenly passes the baby and walks away, tend to spike distress. A smoother approach involves both parents being present and calm, with dad engaging the baby’s attention (a toy, a song, eye contact) before mom steps back. Think of it as a gradual handoff rather than a switch.
If the baby cries during the transition, it helps when mom doesn’t immediately take the baby back. Rescuing the baby every time reinforces the pattern: cry and you get mom. This isn’t about letting the baby scream. It’s about giving dad 5 to 10 minutes to try soothing before deciding the baby truly needs mom. Most of the time, babies settle faster than parents expect once the preferred caregiver is out of sight.
When the Phase Passes
For most families, the intense preference for one parent over the other starts easing between 18 months and 2 years, as the child’s social world expands and they develop stronger relationships with multiple people. By age 3, separation anxiety has typically resolved. Many parents find that the preference actually flips at some point, with toddlers suddenly wanting dad for everything, which brings its own set of complicated feelings.
The dads who come out of this phase with the strongest bonds are usually the ones who kept showing up despite the crying. Every diaper change, every attempt at soothing, every quiet moment of skin-to-skin contact is building neural pathways and hormonal responses that the baby can’t articulate but absolutely registers. The crying is temporary. The bond that forms through persistence is not.