Is Your Child A Thumb Sucker? – Dr Husna Razak by Dr. Khoo Yoong Khean • May 14, 2014 • 0 Comments Thumb sucking is a natural habit in young children that may develop in utero (in the womb). This is a normal process of child development whereby a baby first develops sucking reflex instinctively when any object is placed in the… Read more →