When partners see that a condom has broken, they should replace it immediately. Quickly applying a separate spermicide may help, too. Manufacturers must test condoms to prove that their expiration dating is realistic. Five to nearly eight years had elapsed since their manufacture, and some were up to three years beyond their marked expiration date. Three of the nine models now failed the inflation test.
Couples can add more, if desired.
But adding the wrong lubricant can weaken latex. Only glycerin and water-based lubricants, like surgical jelly, should be used with latex condoms. Note, too, that if a woman is using vaginal medication, such as an oil-based cream for a yeast infection, it might damage condoms. Ask your doctor. Some condoms are packed with spermicide added to their lubricant.