The diaphragm is a topical contraceptive film that is inserted into a woman’s vagina and costs between$10 and$50, which may vary slightly depending on the manufacturer. The diaphragm must be inserted deep into the vagina and dissolves quickly to kill sperm and provide contraception. After using the diaphragm, you should have sex as soon as possible, otherwise the diaphragm may cause the contraceptive effect to be weakened due to the diaphragm being inserted into the vagina for too long, and the diaphragm should not be used frequently, as it may lead to vaginal allergies, redness, swelling, pain, and so on. If women do not want to get pregnant and give birth to children, it is best to use condoms or place intrauterine devices and other methods of contraception, with fewer side effects, safe and convenient to use, and good contraceptive effect.