Summary
Infections like chlamydia and HIV spread through sexual contact, prevented by barrier methods and testing.
In depth
Bacterial (chlamydia, gonorrhoea, syphilis), viral (HIV, HPV, herpes, hepatitis B), and protozoan (trichomoniasis). Many are asymptomatic. Prevention: condoms, vaccination (HPV, hepatitis B), screening and partner treatment.
Barrier methods reduce risk. Screening and early treatment prevent complications such as infertility. Vaccination prevents HPV and hepatitis B.
Common mistake: many STIs show no symptoms.
Frequently asked questions
What is Sexually Transmitted Infections?
Infections like chlamydia and HIV spread through sexual contact, prevented by barrier methods and testing.
Which area of biology covers Sexually Transmitted Infections, and how advanced is it?
Sexually Transmitted Infections is one of the 54 topics in Reproduction & Endocrinology. It is rated Intermediate, so it suits learners who already know the core vocabulary. Related topics in this area include Contraception, Infertility and IVF, Negative Feedback in Endocrine Control.
Can you give an example of Sexually Transmitted Infections?
HPV vaccination reduces cervical cancer.
What should I learn before Sexually Transmitted Infections?
Work through the Beginner topics in Reproduction & Endocrinology first, such as Reproduction, Asexual Reproduction, Sexual Reproduction, then return to Sexually Transmitted Infections. Intermediate topics assume the Beginner vocabulary.
What topics are related to Sexually Transmitted Infections?
The closest topics to Sexually Transmitted Infections are Contraception, Infertility and IVF, Negative Feedback in Endocrine Control, Implantation. Comparing them side by side is a good way to see how the ideas connect.
How can I check that I understand Sexually Transmitted Infections?
Read the summary and the in-depth section, then use the quick check on the interactive lesson for Sexually Transmitted Infections. To practise the whole of Reproduction & Endocrinology, use the Reproduction & Endocrinology quiz.
How is Sexually Transmitted Infections different from Contraception?
Sexually Transmitted Infections: Infections like chlamydia and HIV spread through sexual contact, prevented by barrier methods and testing. Contraception: Methods that prevent pregnancy, including barriers, hormones and sterilisation. Read both side by side and note what each one explains.
What is a common mistake about Sexually Transmitted Infections?
Many STIs show no symptoms.
How should I study Sexually Transmitted Infections step by step?
First, read the summary and write the definition in your own words. Second, read the in-depth section and note any example. Third, compare it with Contraception and explain the difference aloud. Finally, take the Reproduction & Endocrinology quiz and come back to this page for any question you miss.