Another session

I what way are you "hurting" your mother by discussing the idea. In what way is she being hurt? You are talking about this with strangers on an internet forum that has no clue who you or your mother is. You are talking with this with your therapist who may or may not know who your mother is depending on the situation where you live. However, said therapist already believes what she believes. So, how would your mother even know this is being discussed to be hurt?

Also, entertain is an interesting word. It is different than exploring. Maybe that is just a difference in how see the word. To me entertain has a feeling that you accept the assertion that X happened, whereas explore is more along the line of staying open to how your body responds to, what thoughts come to mind, and what feelings are experienced as you talk about what ever memories do surface.

For me, I questioned CSA because of several of my behaviors. At the same time not only do I not have memories of CSA, I don't even have memories of memories of CSA and I don't have any unusual amount of missing time/memories from my childhood. Still we explored this at my direction in trying to figure out some of my behaviors. I came out of it even more certain that there was no CSA in my childhood as I processed through some of my experiences and listened to what my body told me even if I didn't remember all the details of those memories.

I'm not a mental health professional so I could just be talking out of my behind. It seems to me that the proper thing for your therapist to do is to entertain that possibility but keep it to herself until more evidence surfaces. You would think that at this point in time therapists would understand the power of suggestion and particularly their power over their clients.

I was a psych major in college, and I remember my clinical psych professor spending half a lecture talking about the disaster in the late 80s/early 90s of therapists planting false memories of childhood sexual abuse in their clients. And this was not limited to hypnotherapy and not limited to children. Regular therapists were planting false memories in their adult clients. She said those therapists were reckless and engaged in unethical behavior (by hitting clients over the head repeatedly with the therapist's own erroneous belief that the clients had been abused). Basically the therapists insisted that the clients were abused until the clients gave in and adopted the therapists' reality as their own.

She cautioned us, if we were to enter the profession, to never do that. She said, because of confirmation bias, if we start out looking for something, we will probably find it, even if it's not really there.

Is it possible for you to see a different therapist?