| Physical barrier method | Chemical barrier method |
|---|---|
| $(1)$ These methods are used to cover the penis in males or the vagina/cervix in females just before coitus to prevent sperm from entering the female reproductive tract. | $(1)$ These involve the use of chemical substances like creams,jellies,or foams applied in the vagina before coitus to immobilize or kill sperms. |
| $(2)$ By acting as a physical shield,they prevent the meeting of sperm and ovum,thereby preventing fertilization. | $(2)$ These chemicals act as spermicides,disrupting the metabolic processes or oxygen uptake of sperms,leading to their death and preventing fertilization. |
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