Hepatitis C is a virus that affects your liver. It can be very serious if it's not treated.
There are often no symptoms of hepatitis C at first. Some people get symptoms like muscle aches, a high temperature, tiredness and tummy pain.
Hepatitis C can usually be treated with antiviral medicines. These need to be taken for several weeks.
You can catch hepatitis C from contact with the blood of an infected person, such as by sharing needles. It's very rare to catch it from having sex.
You can reduce your risk of catching hepatitis C by not sharing needles, razors or toothbrushes with other people.