I have had soft bowel movements after hemorrhoid removal but the tampon has not come out

I had surgery to remove internal hemorrhoids 8 days ago.   The surgeon told me she placed what is similar to a tampon inside to control bleeding. I have been following all advice, warm baths throughout the day, taking stool softeners, etc.   I have had soft bowel movements but the tampon has not come out. Should I be concerned? I called me doctors office last week and they were not concerned.