Oranda missing scales

The oranda is our biggest fish and after we finished the white spot treatment and done a major water change she has began loosing scales , any ideas what this could be ??

It could be that she is catching herself on something in the tank, the filter perhaps? Or an ornament? I am not aware of an illness that causes scales to drop off, is she been bullied by another fish? . If she has not lost more than a few scales it will probably be ok keep doing the water changes and keep an eye on her.

Okay thank you , I don't think she's bieng bullied but the other day she was swimming on one end of the tank backwards and forwards , its quite a few but mainly only on one side

I believe white spot can cause scales to drop off,the white spots appear from under the scale lifting then causing them to drop off in some cases, they should be fine i wouldn't worry too much

Thank you