👉 Hyperovarism is a type of cancer that occurs in the ovaries. It can be caused by an infection, but it's also possible for other factors to contribute to the development of this specific form of cancer. The exact cause and progression of hyperovarism are not fully understood, but there are some risk factors that have been identified. Hyperovarism is characterized by a high level of estrogen levels in the ovaries, which can lead to symptoms such as irregular periods, heavy