What is involved in an STI screen?

An STI screen involves testing:

  • Urine (chlamydia/gonorrhoea/trichomonas/ureaplasma/mycoplasma)
  • Blood  (HIV/syphillis/hepatitis)
  • Cervical/vulval/throat/anal swab (herpes/syphilis/chlamydia/gonorrhoea)

What are the signs of an STI?

STIs can present in a variety of forms:

  • Pain passing urine
  • Frequency/urgency of urination
  • Vaginal discharge
  • Genital ulceration
  • Genital lumps/spots
  • Irregular vaginal bleeding
  • Pelvic pain
  • No symptoms

Can STIs be passed via oral sex?1

Yes. STIs can be transmitted via oral sex, though transmission rates are generally lower than with anal or vaginal sex. Symptoms of STI in the mouth or throat include, persisting sore throat or oral ulceration.


1 Reference: https://www.nhs.uk/common-health-questions/sexual-health/what-infections-can-i-catch-through-oral-sex/#:~:text=Oral%20sex%20is%20the%20stimulation,risk%20of%20catching%20an%20infection.