sentence: Condoms are rolled up when they are packaged, and are meant to be rolled over an erect penis.
sentences_after: They are most commonly made of latex, but are available in other materials. Condoms normally have an expiration date on them. Condoms weaken after this date, and may not work properly. Condoms are also not designed to be used more than once.
concept_name: condom
headings: Condom Overview
categories: Contraception