bumpy eggs

[countrygirl57]

Sometimed my eggs are like sandpaper & some are wrinkled. My hens are free range. They get poulet layer as well & osyster shells as needed.
Is this something I should worry about or is this normal?

 

[Wizbop]

How long have your chickens been laying?

 

[woodmort]

See https://www.backyardchickens.com/forum/viewtopic.php?id=389430