Striations on shells

[Chicksnpaws]

Hi. For the past few days I’ve been getting an egg that has bumpy striations, looks like stretch marks and I’ve never seen this before and can’t figure out why it’s happening. I cracked one and internally it was normal. And all my hens are acting normal… any ideas or knowledge plz?

 

[nuthatched]

I'd read through here, it has eggs like that.
https://www.backyardchickens.com/articles/common-egg-quality-problems.65923/

 

[Chicksnpaws]

I'd read through here, it has eggs like that.
https://www.backyardchickens.com/articles/common-egg-quality-problems.65923/

Thank you!