How to solve the problem of a lump behind the baby's ear

Patient's question:

Eighteen years old main symptoms: My baby suddenly had three bumps behind the ear Onset time: Yesterday Test results: What kind of help do you need: What caused it

Doctor's answer:

The lymphatic system of children has not yet fully developed at birth. In the first twenty years after birth, particularly during early childhood, the lymphatic system undergoes the most vigorous development. Therefore, at birth, most lymph nodes are difficult to palpate. However, in generally healthy infants and young children, it is common to feel small, bean-sized lymph nodes—soft or slightly firm and painless—on the surface of the body, such as in the neck, submandibular region, behind the head, in front of the ears, and in the groin. This is a physiological phenomenon.