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Types of STIs

Guide-to-STIs

Your Guide to Sexually Transmitted Infections

General information on STIs and genital conditions.

Chlamydia

Chlamydia

Chlamydia is a common bacterial STI that affects men and women. Many men and women will not notice any symptoms.

hsv

Genital herpes (HSV)

Genital herpes is a viral infection that can cause blisters or ulcers in the genital area.

hpv

Genital warts (HPV)

Genital warts are ‘warts’ in the genital area caused by a virus called the Human Papilloma Virus (HPV).

gonorrhoea

Gonorrhoea

Gonorrhoea is a curable bacterial STI caused by the bacteria Neisseria gonorrhoea that affects men and women. Women are less likely than men to notice any symptoms.

msm

Hepatitis A in MSM

Hepatitis A is a virus that infects the liver. There has been an increase in sexually transmitted hepatitis A in men who have sex with men (MSM). A safe and effective vaccine is available for the prevention of hepatitis A infection.

hepb

Hepatitis B

Hepatitis B is a viral infection that infects the liver. It is a major cause of serious liver disease such as cirrhosis (scarring) and liver cancer, and affects millions of people worldwide. In most people a full course of vaccination prevents infection.

hepc_msm

Hepatitis C in MSM

Hepatitis C is a viral infection that infects the liver. Worldwide, it is an important cause of long-term liver disease, such as liver cirrhosis (scarring) and liver cancer. There has been an increase in sexually transmitted hepatitis C in men who have sex with men (MSM).

hiv

HIV (Human Immunodeficiency Virus)

Human Immunodeficiency Virus (HIV) is a virus that attacks the human immune system and weakens its ability to fight infection and disease. Early treatment of HIV keeps the immune system strong, prevents illness and prevents transmission to others.

Lymphogranuloma venereum

Lymphogranuloma venereum (LGV) in MSM

Lymphogranuloma venereum, or LGV, is a type of chlamydia. LGV is mainly diagnosed in men who have sex with men (MSM).

pubiclice

Pubic lice (crabs)

Pubic lice are tiny insects that live in coarse body hair and are spread by close physical contact.

scabies

Scabies is caused by tiny insects (called mites) which burrow under the skin and lay eggs.

shigella

Shigella in MSM

Shigella is a bacteria that can cause severe stomach upset. Sexually transmitted shigella is mainly diagnosed in men who have sex with men (MSM).

syphilis

Syphilis

Syphilis is a bacterial STI. Untreated syphilis can cause serious health problems in both men and women.

a-guide-to-trichomonas-vaginalis

Trichomonas vaginalis (TV)

TV is caused by a tiny germ called a protozoan, which is similar to bacteria. Most cases of TV are found in women, though it can affect both men and women.