Sex specialists always prefer condoms as a good contraceptive method as it is 98% effective in preventing pregnancy and sexually transmitted diseases. Condoms are made up of thin and strong latex rubber type material which acts as the barrier. The shape of a condom is designed such that they fit the penis and are available in various sizes, shapes and flavors. It’s up to you which condom to select but remember to choose the right kind of condom for preventing sexually transmitted diseases. Condoms are effective if they are used properly. It is very much important to check the expiry date before purchasing them and prefer to buy those with a British standards institute (B.S.I) kitemark or EEC standard mark. Before using a condom, be aware of the instructions o using them and take care that you do not hamper them. Once the condom is worn over the penis it does not allow the women’s venereal fluid to come in contact with one man’s penis nor does not allow the ejaculated sperms to enter the vagina. Condoms are thin but also strong as they are made up of durable material. The material of the condom is made up of pores and these pores are much smaller compared to the semen to pass through them.