Transmission, Symptoms, Treatment

Page Impressions

Most sexually transmitted infections (STIs) do not cause any symptoms, but they can still be transmitted. If you are or have been sexually active, it is important to get tested for STIs even if you have no symptoms.

FYI: when we refer to the penis or vagina here, we mean both cis penises and neopenises, as well as cis vaginas and neovaginas. This is because neither hormone treatment nor gender affirming surgery eliminates the risk of transmitting or contracting an STI or HIV.

Chlamydia


Information


Transmission routes::

  • Contact with mucous membranes

  • Vaginal, anal, or oral sex; childbirth

Symptome:

  • None

  • Burning sensation when urinating; pain during sex; changes in menstruation

  • Later: Inflammation in the pelvic area; blockage of fallopian tubes/vas deferens; infertility; increased risk of premature birth

Treatment:

  • Spontaneous healing

  • Antibiotics

Protection

Condoms and dental dams reduce the risk of infection

Gonorrhoea (“the clap,” “the drip”)


Information


Transmission routes:

Symptoms:

  • None
  • People with penises: Discharge (pus), often in the morning; Pain when urinating; inflammation; itching; burning

  • People with a vulva: Yellowish discharge (pus), bleeding disorders, abdominal pain

Treatment:

Antibiotics

Protection

Condoms and dental dams reduce the risk of infection

Other:

Often occurs together with chlamydia or trichomoniasis 

Syphilis


Information


Transmission routes:

Symptoms:

Three stages: 

  1. Small sore (chancre) in the genital area; swollen lymph nodes  Lymphknoten

  2. Fever, headache, and joint pain; rashes on the palms of the hands and abdomen, and lesions on the tongue 

  3. Lesions all over the body; damage to organs and the nervous system (leading to deafness, blindness, and mental decline)

Untreated, fatal after about 3 years. 

Treatment:

Antibiotics

Protection

Condoms and dental dams reduce the risk of infection

Other:

Anonymous reporting to the health department is mandatory

Herpes genitales (genital herpes)


Information


Transmission routes:

Symptoms:

  • Painful blisters filled with fluid (highly contagious)

  • An outbreak is often preceded by tingling sensations.

Treatment:

  • Spontaneous healing of symptoms 

  • Medication

  • Ointment

Protection

Condoms and dental dams reduce the risk of infection

Other:

After the initial infection, the virus remains in the body for life

HPV (human papilloma virus)


Information


Transmission routes:

Sexual contact of any kind

Symptome:

Depending on the type

  • Genital warts in the genital/anal area (which do not necessarily indicate cancer)

  • Bleeding between menstrual periods

  • Some types can cause cervical, penile, or anal cancer

Treatment:

Removal of genital warts

Protection: 

  • Vaccination
  • transmission also possible despite use of condoms and dental dams

Other:

60 – 80% of sexually active people are affected by HPV during their lifetime. The virus usually disappears from the body without being noticed

Genital warts


Information


Transmission routes:

Contact with skin flakes

Symptoms:

  • None

  • Small pointed warts around the mouth and in genital or anal areas

  • Later: itchy eczema, skin tumors

Treatment:

  • Surgery

  • Local acid treatment

  • Ointments

Schutz

  • Vaccination
  • transmission also possible despite use of condoms and dental dams

Other:

Caused by certain types of HPV

HIV (human immunodeficiency virus)/ AIDS (acquired immunodeficiency syndrome)


Information


Transmission routes:

  • Contact with mucous membranes

  • Semen

  • Vaginal and intestinal secretions

  • Blood

  • Breast milk

  • Childbirth

  • Vaginal, anal, or oral sex

  • Sex toys

Symptoms:

  • None

  • Sometimes flu-like at first

  • AIDS: multiple symptoms due to infections

Treatment:

  • Medication

Protection

Sonstiges:

Not curable, but treatable
Anonymous reporting to the health department is mandatory

More about that here

Pubic lice


Information


Transmission routes:

  • Physical contact/ cuddling
  • Sex

Symptoms:

  • Itching

  • Small bruises 

  • Marks on clothing

Treatment:

Shampoos, creams, lice comb, shaving the affected areas

Washing textiles at a minimum of 60 degrees Celsius or storing them in a plastic bag for 4 week

Scabies


Information


Transmission routes:

  • Close skin contact 

  • Clothing 

  • Stuffed animals

  • Towels 

  • Sofas

Symptoms:

  • Itchy nodules and pustules

  • Severe itching at night

Treatmen:

  • Ointment
  • Isolation
  • Wash textiles at a minimum of 60°C

Sonstiges:

If scabies occurs in group or residential facilities (e.g. preschools, nursing homes), the health department must be notified

Trichomoniasis (parasites)


Information


Transmission routes:

Symptome:

Almost exclusively in people with a uterus: 

  • Unpleasant-smelling, greenish, foamy discharge

  • Burning sensation when urinating 

  • Pain during sex

  • Later: Infertility; complications before and during childbirth

Treatment:

Antibiotics

Protection:

Condoms and dental dams reduce the risk of infection

Candidiasis (yeast infection)


Information


Transmission routes:

  • Transmission to others unlikely; 

  • Excessive or insufficient intimate hygiene (changes to pH value provide breeding ground for yeast) 

  • Sex 

  • Taking antibiotics

Symptoms:

Treatment:

Creams, ointments, vaginal suppositories or pills

Other:

Candida yeast are present on the skin and mucous membranes of every human being. Only when it multiplies rapidly (e.g., due to a weakened immune system or excessive hygiene) can it be sexually transmitted and cause symptoms.

MPOX (monkey pox)


Information


Transmission routes::

Symptoms:

  • Painful skin changes: rash, nodules, blisters, wounds, pustules, scabs

  • Later: scarring after wound healing

Treatment:

Spontaneous healing; (subsequent) vaccination

Protection

Vaccination

Condoms and dental dams reduce the risk of infection

Mycoplasma


Information


Transmission routes:

Symptoms:

  • None

Later: Severe abdominal pain

Später: starke Unterleibschmerzen

  • Urinary tract infections; 
  • Inflammation of the uterus, fallopian tubes, or ovaries/vas deferens, prostate, epididymis 
  • Infertility

Treatment:

Antibiotics

Protection: 

Condoms and dental dams reduce the risk of infection

STIs and Travel

April, 2026

Share Article

References

Further topics related to "Sexually Transmitted Infections (STIs)"

Tabubruch ist ein Forschungsprojekt und lebt von ehrlichem Feedback.

Mit einer kurzen, anonymen Umfrage (ca. 2 Minuten) hilfst du uns sehr, die Plattform weiterzuentwickeln.

Wir sind dir dankbar für deine Teilnahme.

Mit Klick auf „Ja, ich nehme teil“ stimmst du der Befragung und der Einwilligungserklärung zu.
Mehr erfahren.

Nutzerbefragung

Wiederbesuchsintention

Bitte bewerten Sie die folgenden Aussagen, indem Sie ankreuzen, wie sehr Sie jeweils zustimmen.

Wiederbesuchsintention

Bitte bewerten Sie die folgenden Aussagen, indem Sie ankreuzen, wie sehr Sie jeweils zustimmen.

Ich werde diese Website regelmäßig besuchen.

Wiederbesuchsintention

Bitte bewerten Sie die folgenden Aussagen, indem Sie ankreuzen, wie sehr Sie jeweils zustimmen.

Ich würde diese Website Freund*innen und Bekannten weiterempfehlen.

Wiederbesuchsintention

Bitte bewerten Sie die folgenden Aussagen, indem Sie ankreuzen, wie sehr Sie jeweils zustimmen.

Bei zukünftigem Interesse an solchen Themen könnte ich mir vorstellen, diese Website wieder aufzurufen.

Gesamteindruck

Alles in allem gebe ich dieser Website die Gesamtnote …

Alter

Wie alt sind Sie?

Geschlechtszugehörigkeit

Hinweistext zur Frage: Bei manchen Menschen stimmt das bei der Geburt zugeordnete Geschlecht nicht mit dem Geschlecht überein, mit dem sie sich selbst identifizieren.

Es sind Mehrfachnennungen möglich.

Wohnort

Wo wohnen Sie aktuell?