Hi , though I'm sad this was the reason let me just say I'm happy you found us. We know how incredibly confusing this all can be so we'll do our best to come together and answer your questions/ give you some clarity!
To start, BCG is an immunotherapy used for bladder cancer. An immunotherapy helps stimulate your body's immune system to fight cancer. For some more info you can read up here https://bladdercancer.net/treatment/bcg
Can you tell us what type of surgery you're getting? Is it a TURBT? This is commonly the first step to help diagnose, help understand the depth of cancer and remove tumors. This link will give you more information. https://bladdercancer.net/?p=307
You could have also had a cystoscopy, this is another procedure that allows the doctor to get a visual of your bladder. Both are very common and help serve similar purposes. This article is by an advocate explaining her experience with cystoscopy and can help give you better real life understanding https://bladdercancer.net/?p=3540
I'll also share this link more info on treatments in general.
I know this can all be a bit overwhelming. But please know we're here to help! No question is a bad one. How have you been sleeping?