
A penis may smell like feta cheese due to a build-up of smegma, a natural secretion that can cause a strong-smelling odour. Smegma is a combination of oils, dead skin cells, sweat and other fluids that collect under the foreskin. While smegma is not harmful, it should be cleaned regularly to prevent bacterial, fungal or urinary tract infections. Practising good hygiene, such as washing the penis with mild soap and warm water, can help manage penis odour.
| Characteristics | Values |
|---|---|
| Common causes | Poor hygiene, infections, skin conditions, lack of ventilation, sweat |
| Treatments | Good hygiene practices, wearing loose, breathable clothing, medical treatment |
| Specific causes | STIs, smegma, balanitis, yeast infection, UTI, gangrene |
| Smegma | Buildup of moisture, oils, skin cells, and other fluids around the penis shaft |
| Smegma appearance | White, creamy, crumbly, cheese-like |
| Smegma prevention | Regular washing of the penis, especially under the foreskin |
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What You'll Learn

Poor hygiene, causing smegma build-up
Poor hygiene can cause a penis to smell like feta cheese. Smegma, a white, creamy substance produced by the body to lubricate the foreskin, can build up and cause an odour. This is more common in uncircumcised penises, as smegma forms around the head of the penis.
If a person does not clean their penis regularly, smegma can accumulate, resulting in a thick white substance. This build-up is more likely to occur in uncircumcised men, as the smegma forms under the foreskin. Smegma is composed of dead skin cells, moisture, and natural oils that keep the penis moist.
To prevent smegma build-up, it is important to practise good hygiene. This includes daily washing with warm water and gently cleaning behind the foreskin. While soap can be used, it is important to choose a gentle variety to avoid irritation.
In addition to daily washing, other steps can be taken to maintain freshness. Wearing loose-fitting cotton underwear can help keep sweat from building up in the genital area. Using a deodorant designed for the groin or genitals can also help to control odour.
While smegma can cause a penis to smell, it is typically harmless. However, if left untreated, it can lead to soreness, infection, and a strong odour. Therefore, maintaining good hygiene practices and seeking medical attention when needed are important for managing penis odour.
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Sexually transmitted infections
A smelly penis is a common issue that can usually be treated with good hygiene practices and lifestyle changes. However, in some cases, a strong penis odour may be indicative of an underlying infection, including a sexually transmitted infection (STI).
If you suspect you have an STI, it is important to seek medical attention and refrain from sexual activity until you have completed treatment. STIs can cause serious health complications if left untreated, and some can be life-threatening. Common STIs that can cause a smelly penis include:
- Chlamydia: This STI can cause inflammation of the urethra (NGU), leading to a foul-smelling discharge.
- Gonorrhoea: This STI can affect the penis, rectum, and throat. It may not always cause symptoms, but when it does, an odour may be present.
- Trichomoniasis: This STI can cause a strong, foul odour in both men and women and is characterised by a green or yellow discharge.
Prevention and Treatment
To prevent STIs, it is important to practice safe sex. This includes using latex condoms correctly and consistently during sexual activity. Wearing loose-fitting cotton underwear can also help reduce penis odour and prevent the build-up of bacteria and other substances that can cause infections.
If you suspect you have an STI, it is important to see a healthcare professional for diagnosis and treatment. Treatment for STIs may include medications such as antibiotics or antifungals, depending on the specific infection.
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Lack of ventilation
A lack of ventilation can cause a penis to smell. The penis is mostly confined to underwear and pants, and this lack of ventilation can trap dead skin cells and sweat against the penis. This is similar to what happens to feet when they are confined in socks and shoes for long periods.
To prevent this, it is recommended to wear loose-fitting cotton underwear to keep sweat from building up in the genital area. Trimming pubic hair can also prevent the build-up of bacteria, dirt, and sweat.
In addition to daily washing, gently washing the penis with warm water more regularly can help to manage odours. It is best to avoid heavily scented products on the genitals, as these can irritate the skin and increase the risk of infection.
If the smell is accompanied by other symptoms, such as a burning sensation when urinating, it could be a sign of a sexually transmitted infection, and a doctor should be consulted.
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Yeast infection
A penis may smell like feta cheese due to a yeast infection, which occurs when there is an overgrowth of the Candida fungus on the penis. This can be caused by a lack of washing, especially if the penis is uncircumcised, or through sexual transmission from a female partner with a yeast infection. Yeast infections can cause a "moldy" smell and require medical treatment to prevent further infections and complications.
To prevent and manage yeast infections, it is important to practice good hygiene. This includes washing the penis regularly with warm water and mild soap, ensuring that the foreskin is gently pulled back to clean the skin underneath. It is recommended to pat the penis dry after washing, rather than rubbing, to avoid irritation. Trimming pubic hair can also help prevent the build-up of bacteria, dirt, and sweat, which can contribute to yeast infections.
Wearing loose-fitting cotton underwear and breathable clothing can also aid in keeping the genital area dry and well-ventilated, creating an unfavourable environment for fungal growth. It is advised to avoid using heavily scented products, colognes, or creams on the genitals as these can irritate the skin and increase the risk of infection.
While maintaining proper hygiene is crucial, it is equally important to be mindful of not over-cleaning or using harsh soaps, as this can disrupt the natural balance of the skin and potentially lead to irritation or other issues. Finding a balance between keeping the penis clean and avoiding excessive washing or the use of irritating products is key to maintaining penile health and preventing yeast infections.
If you suspect you have a yeast infection, it is important to seek medical attention. A healthcare professional can provide an accurate diagnosis and prescribe appropriate medication to clear the fungal infection. Leaving a yeast infection untreated can lead to further complications, so early intervention is advised.
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Skin conditions, e.g. balanitis
Skin conditions, such as balanitis, can cause a smelly penis. Balanitis is an inflammation of the head of the penis, which can be caused by a build-up of smegma, a white, creamy substance made of dead skin cells, moisture, and oil that collects under the foreskin. Smegma is a natural bodily secretion that can cause a penis to smell cheesy if not cleaned regularly. In addition to balanitis, other skin conditions such as eczema or psoriasis can also cause a smelly penis.
Practicing good hygiene is essential in preventing and treating skin conditions that lead to a smelly penis. This includes daily washing with gentle soap and warm water, ensuring the skin underneath the foreskin is cleaned, and drying the penis thoroughly afterward. Wearing loose-fitting cotton underwear and breathable clothing can also help keep the area dry and reduce odor.
If you suspect that you have balanitis or another skin condition, it is important to seek medical advice. A healthcare professional can provide a diagnosis and recommend appropriate treatment options. They may suggest additional steps to manage the condition and prevent further complications.
It is worth noting that while practicing good hygiene is crucial, using heavily scented products on the genitals can irritate the skin and increase the risk of infection. Therefore, it is recommended to use mild, unscented soaps and avoid applying cologne, scented creams, or other perfumes directly to the penis.
In summary, skin conditions like balanitis, caused by smegma build-up or other factors, can lead to a smelly penis. Maintaining proper hygiene, choosing suitable products, and seeking medical advice when needed are key steps in addressing and preventing this issue.
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Frequently asked questions
The smell could be caused by a substance called smegma, which is a natural bodily secretion that can build up under the foreskin and cause a strong-smelling odour.
Smegma is a white, creamy substance produced by the body to lubricate the foreskin. It is made up of a combination of oils, dead skin cells, sweat, and other fluids.
To get rid of the smell, wash your penis regularly with mild soap and warm water, making sure to pull back the foreskin and clean the skin underneath.
Yes, there are other potential causes of penis odour, including sexually transmitted infections, poor hygiene, and a lack of ventilation. If the smell is accompanied by other symptoms, such as a burning sensation when urinating, it is important to see a doctor or healthcare professional.

























