That thin layer of "rubber" actually hides so many unknowns

Everyone knows that wearing condoms is one of the most effective ways to prevent unwanted fatherhood and sexually transmitted diseases. However, there are things you don't know about condoms that could change your life.

When you put on a condom the right way, the chances of something going wrong are very low. Unfortunately, this ideal situation usually only occurs under laboratory conditions. In the real world, various misuses of condoms can cause them to become ineffective. When it comes to putting on a condom the right way, what you don't know can hurt you.

What you don't know

First, let's talk about a few myths about condoms—and there are many—that can prevent you from using them consistently. You know, the first step to using a condom properly is to put it on before having sex.

Myth: Men can’t feel pleasure when wearing a condom.

This is the most common excuse men use when they don't want to wear a condom. Many women believed it—and later regretted it. A study published in January 2013 puts to rest that myth: Using condoms does not make men less satisfied with their female partners. That's it, that's the truth. Some condoms can even enhance the pleasure. So, wear it!

Myth: Wearing condoms kills the fun.

If you're eager to get started, condoms can seem like a burden, and there's nothing romantic about fiddling with a piece of plastic. But what is the real pleasure killer? You'll know when you get an STD. Or like being a father. Besides, whether or not a condom is a pleasure killer is entirely up to you. Wearing it provocatively can be part of foreplay. (Time to use your imagination, ladies!)

Myth: Latex allergies make condoms useless.

First, latex allergies are very rare. More common is an allergy to the spermicide in lubricated condoms. If your partner is allergic to condoms, try one without spermicide and use some water-based lubricant. If you are really allergic to latex, you can use latex-free condoms, such as polyurethane (PU) or sheepskin. (Lifestyle also makes a new polyisoprene condom that has received rave reviews.)

Myth: You can’t wear a condom if you don’t have one.

OK, technically that’s true, but it still falls into the realm of myth, unless you live in a remote mountain village in Yemen. If not, the excuse doesn't hold water. Condoms are so easy to find. You can buy them from vending machines in supermarkets, convenience stores, drug stores, clinics, and even in many public toilets. If you are lucky in love, just pick two of them up.

Myth: Carrying condoms with you at all times is a good idea.

This makes sense, but it still depends on how you wear it. Although better than nothing, these love shields should be stored carefully to avoid expiration. For example, condoms can weaken if left in a warm, moist place and become more fragile over time. If this continues, it may break or even tear. Where possible, condoms should be stored in a cool, dry place.

Myth: Men don’t need to wear condoms until they are close to orgasm.

Oh, no. Men must wear condoms before having sex, not before orgasm. Before orgasm, the penis will ooze a clear fluid containing small amounts of sperm. Although it is unlikely that this amount of semen will result in pregnancy, it is still possible, as is the risk of contracting sexually transmitted diseases. (Learn more about 10 things you didn't know about the penis.)

Myth: Two condoms are better than one.

Logically, wearing two condoms would provide an extra layer of protection over wearing one, but nothing could be further from the truth. Others believe that this method can reduce a man's sensitivity, allowing him to last longer. In fact, wearing two condoms is worse than wearing one. The friction between the rubber makes both condoms brittle, which makes them more likely to break. One condom is enough. If men are concerned about sensitivity issues, they can look for products that can help.

Myth: You don’t need to change condoms during your second orgasm.

Reusing condoms, well, that's pretty gross, regardless of whether the man orgasmed the last time or not. This behavior is also risky. When you come to the second time, the condom is more fragile and more likely to break.