Hi , my friend got diagnosed with high grade sarcomatoid cervical cancer . Her ovarian transportation was also done. He has taken 5 chemo cycles and a month of radiation and 3 cycles of brachytherapy. Doctor had asked to do an ultrasound after a month , which is normal , however , it shows minimal fluid in endometrial cavity . Uterus is normal and thickness is 4mm . Is this fluid due to the side effects of treatment or does it need investigation . The doctor is out of country , hence confused