09/03/2026
Why does your baby keep their fists clenched?
At around 3 months, babies are becoming more aware of their hands and their environment, so an occasional clenched fist can be completely normal. But when I see a baby consistently holding their hands tightly, I also think about the nervous system.
Sometimes a clenched fist can be a sign that baby is overstimulated, uncomfortable, overtired, or experiencing tension in their body. Birth and the transition into the outside world can also create patterns of tension that babies are still learning to regulate.
This little guy is 3 months old, and one of the biggest things I want parents to remember at this stage is how much sleep babies still need. Many 3-month-olds do best with relatively short wake windows, often around 60–90 minutes, depending on the baby.
When babies stay awake too long, their nervous systems can become overwhelmed, making it harder for them to settle and regulate.
Look at the whole baby—not just the hands. Check out Meg Faure | OT & Baby Sleep • Parenting Expert for more info.
Sleep, feeding, movement, muscle tone, breathing, and how easily they settle can all give us clues about how their nervous system is doing.
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