The contraceptive ring can look like a variety of things, such as a single round ring, twisted ring, V-shaped ring, T-shaped ring, and so on. The IUD is a contraceptive device that is placed inside the uterine cavity and is usually made of materials such as stainless steel, plastic, and silicone rubber. There are many types of IUDs and many different shapes, such as a single ring, twisted ring, V-shaped ring, T-shaped ring, etc. Different shapes can have a contraceptive effect. Placement of the IUD is usually done 3-7 days after menstruation. Women with acute inflammation of the vagina, acute illnesses, etc. are not recommended to have the IUD, and can wait until they are in good health to undergo the IUD procedure. After the IUD is inserted, women may experience a small amount of vaginal bleeding, abdominal pain, and other symptoms, which are usually mild and can basically disappear within a week.