hi, my baby has had one lump on his head since he was born he is 3.5 months now and it's increased a little bit. please help me with this query. as I am worried that it is something serious.

A. Usually fat balls can be seen with kids it is a hereditary that kids have normally but if it is increasing then in that case of physical assessment would be important and maybe you need to run some scan or test to understand the reason and treatment for the same genuinely detect a problem