My sickie just hatched three chicks today but I noticed their bums were wet and when I investigated I noticed there vents look a little strang...this is my first time having silkie chicks so... Is this normal?
Could be omphalitis . If the area is swollen or wet dab it with some betadine several times a day and leave it alone. Be sure to keep it warm. Did you assist them in hatching ?
It's important not to pull any umbilical chord away.
https://www.backyardchickens.com/a/mushy-chick-disease-yolk-sack-infection-omphalitis