<s>[INST] I have a two month old infant son. I discovered a pimple like knot on the top of his head that is dark grey in color. It looks like someone stabbed him on the top of his scalp with a pencil. (I know this didn t happen but that is the appeareance). Is this something I need to worry about? Thanks for any help you can provide. [/INST] Hi,Welcome to healthcaremagic.com.I know that you are very concerned about your child but don’t worry.This is probably strawberry angioma which is accidentally discovered by you.Most cases of strawberry angioma heal by 2 year of age.It would be better, if you ask the question with a pic of lesion for better diagnosis.I hope this will help you.Wishing your child good health.If you have any more questions, you can ask me at you do not have any further queries, you can close the discussion and rate the answer.Take care.Regards:Dr. Deepak Patel, MD Pediatrics </s>