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What Causes Penis Blisters?

By Meshell Powell
Updated: May 17, 2024

Penis blisters can have a number of causes and should be evaluated by a doctor in order to ensure an accurate diagnosis. Some of the possible causes include genital herpes, syphilis, or scabies. A type of infection known as folliculitis may also lead to the development of penis blisters. Less common causes may include a yeast infection or cancer. Any questions or concerns about penis blisters in an individual situation should be discussed with a doctor or other medical professional.

Genital herpes is one of the most common causes of penis blisters. This is a sexually transmitted disease that is caused by a virus and causes blisters to form in the genital area. The blisters may be painful in some cases and may break and ooze fluid. Outbreaks tend to come and go in no apparent pattern. While this disease is most contagious during an outbreak, it can be spread to a sexual partner even if no penis blisters are present.

Syphilis is another type of sexually transmitted disease that may cause penis blisters. This disease is caused by a bacterial infection and often goes undetected because many of the symptoms imitate those of other diseases. In addition to genital sores or blisters, syphilis may cause a skin rash, swollen glands, and hair loss.

Scabies is a type of contagious skin infection that is caused by a parasite. The most commonly reported symptoms are itching and the development of a rash that may lead to the formation of blisters. While topical medications are available to kill these parasites, symptoms may persist for several days or weeks after all of the parasites have been killed.

Yeast infections are more common among women, although men can get them as well. A male yeast infection usually causes redness and itching on the head of the penis. In some cases, small white blisters may appear. The primary method of transmission is sexual activity with an infected female partner. Without treatment for both partners, it is possible or the yeast infection to be transferred back and forth indefinitely.

Follicilitis is a type of skin infection caused by inflammation of hair follicles. This is one of the most frequent causes of blisters on the penis and is typically treated with the use of antibiotics. Penile cancer is a relatively rare cause of penis blisters, although early detection is of the utmost importance. Symptoms may include redness or irritation on the penis as well as the presence of one or more blisters or sores.

WiseGeek is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Link to Sources
Discussion Comments
By anon1005165 — On Jul 03, 2021

I had like a little cut under my foreskin and well, it looks like it's healing. That would make it look like a sore. Is that normal or what is it?

By anon1000924 — On Jan 31, 2019

If you have penis skin issues, you need to use a penis health creme called Man1 Man Oil. It is made just for the penis and will treat pretty much any issue that isn't related to an STD. It is a wonderful product so keep it in mind. Cheers.

By anon990649 — On May 03, 2015

I am currently on butrans patches for spine fractures. This morning I have developed yellow blisters on the bottom of my penis. The layer of skin has removed and is constantly oozing water like substance.

I am assuming the morphine patches have caused this but not sure. Has anyone else experienced this?

I would like to know the best way to clear up the blistering.

By anon957560 — On Jun 21, 2014

I have small, reddish sores on my penis. I tested for syphilis but I don't have it. I was given some antibiotics but there is no change. What could be wrong?

By anon924454 — On Jan 04, 2014

Blisters definitely can occur from overaggressive masturbation, as can thin layers of scar tissue. Both of these can, over time, lead to a bit of penis de-sensitization (which also occurs naturally as men age).

Using a good penis nutrient formula (health professionals recommend Man1 Man Oil) with acetyl L carnitine can help in this area; that ingredient is neuroprotective and can help with penis sensitivity loss.

By anon343693 — On Aug 02, 2013

Strangely, the article at the head of this page fails to state that the most obvious cause of blisters on the penis is friction during intercourse or masturbation. The blisters will clear up by themselves within about two weeks, but during that time hygiene in that area is important. Exposure to the air, so that drying can occur, also helps.

By anon334282 — On May 11, 2013

If you're circumcised, masturbating without lube can cause blisters.

By anon330806 — On Apr 18, 2013

If a woman has a yeast infection, can this lead to her male partner having small blister-like bumps on his penis. They do not hurt and do not itch.

By anon328323 — On Apr 03, 2013

I have little red bumps which turn into white heads and squirt pus when squeezed. They appear on my penis near the shaft every now and then in random spots. They're all relativity close together when they appear and last a day or a week or more.

The bumps resemble a common zit in development, color, and feeling. They always pop up alone and never in groups, and are spread out pretty far in time of appearance for the majority. The chance of an STD is possible.

I am in my later teenage years and a zit isn't always rare for me on other parts of my body, but I have mostly decent skin for the rest of my body. Should I be concerned or not?

By anon320988 — On Feb 20, 2013

I hate how long the lab takes to give results. My life has been on hold this whole week

By latifosky — On Jan 19, 2013

I had sex and it took me too long to have an orgasm. Later I noticed there was a blister at the tip of my penis. Then now, after six, days there is a small spot of pus. What should I do?

By anon309392 — On Dec 16, 2012

Can any one tell me which doctor should be consulted related to penis blisters -- a gynecologist or skin doctor?

By truman12 — On Dec 17, 2011

Regardless of the cause, anyone who experiences this condition should see a doctor immediately. The penis is one of the more sensitive areas on the body and problems with the penis can be symptoms of much larger problems. If the blisters are a result of an STD it is imperative that you see a doctor as quickly as possible.

This is the responsible thing to do for anyone that is sexually active. You have to do it for yourself and for the health of your partner

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