How were you diagnosed with endo?

Lina

So I had a laparoscopic myomectomy to remove fibroids in March 2017. My surgeon told me also removed endometriosis cells as well. Fast forward to now - I am doing fertility cycles with medications and am worried the hormones I have to take may make the endo or fibroids grow back.

How was everyone diagnosed with endo? Back in 2017 after the initial surgery they told me I had to do surgery to tell of you had the endo grown back....is this correct? I was hoping an ultrasound could detect.