The possible causes of anterior fontanelle are : - encephalitis - hydrocephalus - meningitis - raised intracranial pressure Reference: https://medlineplus.gov/ency/article/003310.htm Image via: https://www.amhsjournal.org/article.asp?issn=2321-4848;year=2018;volume=6;issue=2;spage=265;epage=266;aulast=Aliyu