It affects both sexes and can lead to AIDS which can be fatal. Hepatitis B, which can also be fatal, can be passed on during sex. It's not true that only certain sorts of people get STDs. These infections can affect anyone. Sometimes they can't.
Some infections have no obvious symptoms.
Although it affects both sexes, there may be no noticeable symptoms in women. These symptoms don't necessarily mean an STD, but see a doctor just in case. STD testing is confidential and available from Sexual Health Centres, women's health centres, Family Planning Clinics and GPs. Most services at Sexual Health Centres are free. Anyone attending these centres need not provide their real name or show their Medicare card if they prefer not to.