I'm 31 and just had an US a few weeks ago. My doctor told me that I have a 1cm complex ovarian cyst that looks like it was filled with blood. Also, said it was hypervascular. Does this mean it's cancerous? I'm freaking out! I have to go back in a few weeks for a follow up and he said "it's not something you need to worry about now", which made me feel uneasy. Please help!!