Hand expression is a technique where parents use their hands to express milk from their breasts. It is a simple and free method that can be used anywhere and anytime. Hand expression is especially beneficial in the early days after giving birth to stimulate the production of colostrum and establish breastfeeding. It can also help with various situations like increasing milk production, relieving engorgement, and dealing with mastitis. While there may be a learning curve, patience and practice can make hand expression effective. It is important to seek help if experiencing issues or discomfort.