Final answer:
In an educational session about ovarian cancer, a nurse should teach that frequent urination is a manifestation of ovarian cancer due to the pressure a tumor may put on the bladder.
Step-by-step explanation:
When conducting an education session on ovarian cancer, it is important to discuss the common signs and symptoms associated with this disease. Although ovarian cancer may not show symptoms in the early stages, as the cancer progresses, symptoms such as frequent urination can occur. This is due to the growing tumor putting pressure on the bladder. Other manifestations to include in the teaching are unusual lumps or swelling, pain, and issues such as an enlarged abdomen resulting from fluid accumulation or the tumor itself. While joint pain, visual disturbances, and headaches can be symptoms of other health issues, they are not typically direct manifestations of ovarian cancer.