In the clinic, we often encounter a bulge on the baby’s neck, and parents are nervous when they inadvertently feel a few “bumps” on the child’s neck that slide like soybeans. First of all, if the “bumps” are on both sides of the neck, consider to exclude whether it is congenital myotonic squint, which is mainly manifested by the child’s head bending to one side and the neck not being straight. If the bumps are on both sides of the neck, we should rule out congenital myelopia, which is mainly manifested by the child’s head bending to one side and the neck not being straight. Then consider whether it is an enlarged lymph node, which is mainly caused by cold, fine bacterial infection and so on. If the lymph nodes are enlarged, the cause should be identified, for example, if it is caused by a cold, the cold should be treated and antibiotics should be applied for anti-inflammation. In the case of swollen lymph nodes in infants, it is important to check whether the “bumps” are painful and clearly demarcated from the surrounding tissues, which usually occur 7 to 10 months after birth, mostly behind the ear to the neck, like the size of a small bean. They do not hurt when pressed and are particularly common in summer. The main reason is that the infant has prickly heat and scratches with his or her hands. When the baby scratches with his hands, the bacteria that lurk in the nails invade the baby’s body from the scratched skin and stop at the lymph nodes, which then swell in response to the bacteria. This swelling does not normally become septic and is absorbed unconsciously and naturally. When septicemia occurs, it starts with redness around the area and is painful when pressed. It is important to note that when the swollen lymph nodes become gradually larger and their number increases, it is important to take your baby to the hospital.