What does a small orange bump on scalp of a toddler indicate?
Thanks for the query.
I have reviewed the pictures. It may be sebaceous cyst or lipoma. Sebaceous cyst is soft and painless. And lipoma can be freely movable. A physical examination is necessary to differentiate between the two.
I think it should have been there for quiet a long time without notice. As it is not filled with pus and painless abscess is less likely.
You need not be concerned as it appears to be benign. However I will encourage you to consult a dermatologist to arrive at a definitive cause.
Will be happy to help you further.