Baby or Toddler Regressing After Starting Daycare
The short answer
Some behavioral regression when starting daycare is very common and expected. The transition to daycare is a major life change for a young child, and temporary regression is their way of coping with the stress of separation, a new environment, and a new routine. Common regressions include: increased clinginess, sleep disruptions, potty training setbacks, more tantrums, changes in appetite, and wanting a bottle or pacifier again. Most children adjust within 2-6 weeks. Consistency, patience, and a warm goodbye routine help ease the transition.
By Age
What to expect by age
Babies starting daycare may show changes in sleep patterns, feeding behavior, and overall fussiness. Separation anxiety peaks around 8-10 months, making this a particularly challenging time to start daycare. You may notice your baby is clingier at drop-off and pickup, sleeps differently at home, or has changes in feeding patterns. Bring familiar comfort items (a blanket or lovey) to daycare. Ask about the daycare's routine so you can mirror it at home for consistency. Most babies adapt within 2-4 weeks, though some take longer.
Toddlers starting daycare often show regression in multiple areas: sleep (nighttime waking, nap refusal), potty training (accidents after being trained), eating (pickier or eating less), behavior (more tantrums, hitting), and social (increased clinginess, separation anxiety). They may also bring home challenging behaviors learned from other children. These regressions are temporary coping mechanisms, not permanent setbacks. Help your toddler by: creating a consistent goodbye ritual, validating their feelings ("I know you miss me"), maintaining routines at home, providing extra connection time after pickup, and not introducing other big changes simultaneously.
What Should You Do?
When to take action
- Increased clinginess during the first 2-6 weeks of daycare
- Sleep disruptions that gradually improve
- Temporary potty training setbacks
- More tantrums and emotional sensitivity for a few weeks
- Wanting more comfort items (pacifier, lovey, bottle)
- Regression is lasting beyond 6-8 weeks with no improvement
- Your child seems fearful or distressed (not just sad) about daycare
- Regression is severe - complete refusal to eat, extreme sleep disruption, or persistent distress
- You have concerns about the quality of care at the daycare
- Your child has signs of being mistreated: new fearfulness, unexplained injuries, dramatic personality changes
- Loss of developmental milestones (language, motor skills) beyond behavioral regression
- Persistent refusal to eat combined with weight loss
- Your child is showing signs of significant anxiety or depression
Sources
Related Resources
Related Behavior Concerns
Baby Separation Anxiety
Separation anxiety is a completely healthy sign that your baby has formed a strong attachment to you. It typically begins around 6-8 months, peaks between 10-18 months, and gradually eases by age 2-3. It means your baby's brain has developed enough to understand that you exist even when they cannot see you, but not yet enough to understand that you will always come back.
Toddler Regression After a Move or Big Life Change
It is very common for toddlers to temporarily regress after a major life change such as a move, the arrival of a new sibling, starting daycare, a parent returning to work, or changes in family structure. Regression means your toddler may revert to earlier behaviors - having potty accidents after being trained, wanting a bottle again, increased clinginess, sleep disruptions, or baby talk. This is a normal stress response, not a sign that development has been lost. With patience, routine, and emotional support, most regressions resolve within a few weeks to a couple of months.
Toddler Being Aggressive at Daycare
Aggressive behavior at daycare - hitting, biting, pushing, or grabbing - is very common in toddlers, particularly between ages 1-3. Toddlers are still developing impulse control, emotional regulation, and communication skills, and they often resort to physical behavior when they are frustrated, overwhelmed, tired, or unable to express their needs verbally. This does not mean your toddler is a "bad child" or that you are doing something wrong. Most toddler aggression decreases significantly as language skills improve and emotional regulation develops, typically between ages 3-4.
My Toddler Is Aggressive Toward Pets
Toddlers being rough with pets is extremely common and almost never reflects true aggression or cruelty. Young children lack the motor control to be consistently gentle and do not yet understand that animals feel pain the way they do. With patient, consistent teaching about gentle touch and close supervision, most toddlers learn to interact safely with pets by age 3-4.
My Baby Doesn't Seem Attached to Anyone
By 7-9 months, most babies show clear preferences for their primary caregivers and some wariness of unfamiliar people. If your baby seems equally comfortable with everyone and shows no distress when separated from caregivers, it may simply reflect an easy-going temperament. However, if combined with other social differences, it can occasionally warrant further discussion with your pediatrician.
Baby Arching Back and Crying During Feeding
A baby who arches their back and cries during feeding is often showing signs of discomfort. The most common cause is gastroesophageal reflux (GER) - stomach acid flowing back into the esophagus causes a burning sensation, and the baby arches to try to relieve it. Other causes include an improper latch (breastfeeding), a bottle nipple with too fast or too slow a flow, ear infection pain worsened by swallowing, oral thrush, or being overstimulated. If this is happening regularly, discuss it with your pediatrician.