Babies cry when they are born primarily because it marks their first breath and the beginning of independent oxygen intake. The cry helps expand their lungs and clear fluid from their airways, enabling effective breathing outside the womb. It is also a reaction to the sudden change in environment — from the warm, cushioned womb to the cooler, brighter, and noisier outside world, which can be quite overwhelming. Crying signals that the baby's lungs are working properly and that they are adjusting to life outside the mother’s body. Not all babies cry immediately, and while crying is generally a positive sign, some newborns may have delays or complications that require medical attention.
