Speculum are a medical tool which is mainly used to widen body cavity or passage openings, like the vagina, anus, ear, or nostrils. When performing a speculum activity, a doctor or other medical professional may utilize the tool to facilitate in closely examining a patient’s interior parts. Additionally, this tool can be used to hold a body passage or cavity open so that a sample of cells or other matter can be taken. Speculums are available in a wide range of sizes and shapes, banking on their particular purpose. Most are made out of metal which can be sterilized once they are used.