Most discussions about sexually transmitted infections (STIs) tend to focus on infections that cause symptoms on or around the genitals. And while it’s true that many STDs cause symptoms in the genitals, the genitals aren’t the only place an STD can find a home.
All sorts of things can cause discomfort in the anus. From hemorrhoids and anal fissures to yeast infections, pinworms and diabetes, anal itching can indicate a number of medical conditions. And one of these conditions could be an STI.
In this blog, we discuss which sexually transmitted diseases can cause anal itching and how you can get tested for them.
Sexually transmitted diseases (STDs) can cause symptoms all over the body.
What is anal itching?
Anal itching, medically known as Itching of the anusis a common symptom that can affect anyone at any age.
This uncomfortable feeling around the anus can be caused by a variety of factors, from minor irritation to more serious health conditions. Sexually transmitted diseases can be a possible cause, especially in sexually active people. These infections can also cause other symptoms such as painful bowel movements, anal pain, and unusual discharge.
However, sexually transmitted diseases are not the only reason why someone may suffer from anal itching. Non-infectious causes such as anal fissures, hemorrhoids, certain skin diseases and yeast infections can also lead to anal discomfort and irritation.
To find the right treatment and prevent further complications, it is important to recognize the symptoms of anal itching and understand the possible underlying causes.
Which STDs cause anal itching?
In general, for a sexually transmitted infection to cause anal itching, it must be site-specific, meaning that symptoms usually occur at the site of transmission.
So we need to talk about anal sex.
Anal sex can be particularly risky. The anus is often very sensitive and tears easily, increasing the likelihood of transmitting certain infections.
Additionally, full anal sex may not be necessary. You can contract an STI in your anus if infected body fluids come into contact with your anus.
Here are some infections that can cause anal itching.
Anal herpes
Herpes simplex virus, commonly known as Herpescan easily infect the anus, especially if an infected man performs unprotected anal sex with his partner.
Symptoms of anal herpes may include:
- Itching in the anal area
- Small blisters around the anus
- Painful bowel movements
- Unusual discharge from the anus
HSV 1, also known as oral herpes, tends to affect the area around the mouth and cause cold sores. HSV 2, also called genital herpes, tends to affect the genitals. It is possible for one of these infections to spread to the anus.
Some people may experience only mild symptoms or experience flu-like symptoms such as fever, headache, or muscle aches during the initial outbreak.
Anal gonorrhea
gonorrhea is a highly contagious sexually transmitted disease. Most gonorrhea infections are completely asymptomatic. It usually affects the genitals, as this is where the most common site of transmission is. However, gonorrhea can occur in many parts of the body, including the mouth and anus.
Symptoms of anal gonorrhea include:
- Anal mucus or discharge
- “Tenesmus” – the feeling of wanting to continue defecation even though nothing is coming out
- Bleeding from the anus
- Itching around the anus
- Painful bowel movements
Anal chlamydia
Like anal gonorrhea, anal Chlamydia Transmission to the anus usually occurs through anal sex or through contact of infected body fluids with the anus. The symptoms of an anal chlamydia infection may not be as noticeable as those of a genital chlamydia infection.
Symptoms of anal chlamydia infection include:
- Anal itching
- Unusual anal discharge
- Soreness or pain in the anus area
- Pain during or after bowel movements
HPV
Certain strains of the human papillomavirus (HPV) can cause anal warts when the initial HPV infection enters the body through the anus, usually during anal sex.
Anal HPV warts are usually painless and do not itch. In rare cases, warts can become so large that they block the anus and make bowel movements difficult.
scabies
A scabies infection is caused by a parasite that burrows under the skin and lays eggs, causing irritation.
Scabies is usually spread through prolonged physical contact, such as hugging, kissing, and sexual intercourse with an infected person. Transmission can also occur through sharing clothing and bedding and through prolonged contact with infected surfaces.
Another parasitic infestation that can cause genital and anal itching is pubic lice, which are transmitted through sexual contact or contact with contaminated bedding or clothing.
Symptoms of a scabies infection in the anus may include:
- Anal itching
- A rash with reddish or dark brown spots at the site of infection
Other common causes of anal itching
While sexually transmitted diseases are a known cause of anal itching, there are several other common reasons why someone might experience this symptom.
Everyday factors such as irritation from toilet paper, poor hygiene or the use of scented soaps and personal care products can cause anal itching.
Conditions such as hemorrhoids, which are swollen veins around the anus, and anal fissures, which are small tears in the anal skin, can also cause discomfort and itching.
Other non-STI causes include skin conditions such as eczema or psoriasis, fungal or yeast infections, and even dietary factors such as eating spicy foods. Sometimes changes in bowel habits or frequent wiping can irritate the sensitive skin around the anus and make itching worse.
Because so many different problems can cause anal itching, it’s important to pay attention to any other symptoms and consider all possible factors when looking for relief.
When to see a doctor
If you experience persistent anal itching or the itching is accompanied by other symptoms such as unusual discharge, anal bleeding, severe anal pain, or changes in bowel movements, it is important to see a doctor.
While an itchy anus can be caused by a variety of factors, including both sexually transmitted diseases and non-STI conditions, persistent symptoms should not be ignored. Early diagnosis and treatment can help relieve symptoms and prevent complications.
Final thoughts
An itchy anus can be harmless, but it could also be a sign of something more serious.
If you think you have been exposed to a sexually transmitted disease, it is best to do so Get tested as quickly as possible. Most sexually transmitted diseases are completely curable with the right medications and will cause minimal damage to your health if caught early.
Call the number listed above to speak to one of our sexual health advisors.
Don’t leave your sexual health to chance.
This article first appeared on July 14, 2023. Last updated 12/12/2025.
This article has been medically reviewed by Steve Chapman08/04/2025.
