119749
In humans , oophorectomy is most often performed because of diseases such as ovarian cysts or cancer ; as prophylaxis to reduce the chances of developing ovarian cancer or breast cancer ; or in conjunction with hysterectomy ( removal of the uterus ) .
 cancer, cancer, cancer
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 cancer, cancer, cancer