The claim
「Never touch or wash the soft spot」
Verdict
MythFeeling the fontanelle is part of the routine newborn physical exam — clinicians palpate it at every check, and may even auscultate over it. Ordinary washing and touching will not hurt your baby, so wash normally; being afraid to touch it is what lets cradle cap build up. What is worth watching is the fontanelle itself: it should be flat and firm, and it is a clearly sunken one (dehydration) or a persistently bulging one (raised intracranial pressure) that warrants medical attention.
Sources
StatPearls · StatPearls, NCBI Bookshelf, U.S. National Library of Medicine
StatPearls (NCBI Bookshelf, U.S. National Library of Medicine). (2023/07/24). Anatomy, head and neck: Fontanelles. https://www.ncbi.nlm.nih.gov/books/NBK542197/
Mechanism source ° · Government / official agency · checked 2026-08-02
° Sources with this mark do not address the claim directly; their content supports the mechanism behind the verdict.

