cere concerns

[Elliot1234]

Hi my sons budgie has had a noticeable change to the cere. It’s 15 months old. I’ve been told cancer to iodine to maybe he’s a girl not a boy as we thought. Can anyone help ?

 

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@Ripshod is very knowledgeable on budgies
Were those suggestions made by a vet?

 

[Ripshod]

Hi my sons budgie has had a noticeable change to the cere. It’s 15 months old. I’ve been told cancer to iodine to maybe he’s a girl not a boy as we thought. Can anyone help ?

Do you have a photo from before this change? What's he eating? Did the vet not offer you a supplement, or suggest one?