The risk of hepatitis C from sex is low
It is extremely rare to spread hepatitis C (HCV) among sexually monogamous couples. But other sexual practices can increase your risk.
Having any type of sexually transmitted disease increases your risk for hepatitis C, particularly if a person has HIV. About one-third of all Americans infected with HIV also have hepatitis C.
Having an open sore on the genitals also increases risk of hepatitis C transmission. If either you or your partner has an open sore, avoid sex or use a latex condom.