Should I be concerned about the hairline fractures in my tile?

[DuncanWW]

Hello all.

I removed an old shower rail recently and placed a new one on. A couple of days after removing the old rawplugs I noticed some hairline fractures stemming from the holes which hosted the rawplugs. I obviously sealed the holes up with silicone sealant immediately after removing the rawplugs.

Should I be concerned about these hairline fractures? Are they superficial or structural? Are they aesthetic deficiencies or structural urgencies that need to be rectified?

I have noticed that there are identical fractures in or around other tiles and they have been like that for years without further complication. You can only really see them if you shine a bright light on them.

I have attached attached two pictures: one of the hairline fracture coming out under the silicone sealant that seals the electric shower and the other picture showing the fractures I refer to in my question.

Let me know what you all think.

Thank you!

 

[Dave]

Its glaze crazing and is common with glazed tiles.
Nothing to worry about.

 

[J Sid]

I'd give it a wipe over with lithofin stain stop as IMHO moisture will get though over time, especially in a wet area