How likely is ovarian cancer for a 25 year old?
Not very likely
The actual answer to this depends on whether there is a family history of ovarian cancer. If a close family member of the 25 year old has had ovarian cancer then the family could carry the brca gene which would increase the possibility of ovarian cancer. Symptoms of ovarian cancer are generally bloating and possibly abdominal pain.
An ultrasound of the ovaries will find cancer.