Your baby is born with all the hair follicles they’ll ever have. A hair follicle is part of the skin from which hair strands grow.At birth, some of the follicles are typically in the resting phase (called the telogen phase) and others are in the growing phase (anagen phase). But certain factors can accelerate the telogen phase, causing hair to shed.Your baby may lose hair on the back of the scalp due to hair rubbing against the hard surfaces of crib mattresses, strollers, and playpens.#DoctorTal