What is the reason for a lump on a newborn's head?

Patient's question:

No

Doctor's answer:

When the blood in a cranial hematoma is absorbed, it may cause the child to develop more severe jaundice, which needs to be noted. If the cranial hematoma absorbs quickly, it can be absorbed within one or two weeks, but some may take three or four months to absorb. In some cases, the hematoma may fail to absorb and become hardened through fibrosis.