Rash on Scrotum, Sac, Inner Thigh, Causes, STD, Pictures & Treatment

Rash on scrotum causes changes in the skin of the testicles thus affecting its appearance, texture or color. There are several reasons that would cause a rash to appear on the testicles sac, inner thighs and the penile shaft. Common causes of these rash will include STDs, candidiasis, heat rash, dermatitis, eczema, and scabies among many other causes. Here are some of the images of how the rash appears and some treatment options available.

An itchy rash around the genital area is common and could affect anybody regardless of age and gender. For most men, a scrotal rash could appear due to simple reasons such as wearing clothes with fabrics that irritate the skin. Some will also develop the rash as a result of allergic reaction to laundry detergent or body wash.

Rash on Scrotum could be Signs of Genital Warts
Rash on Scrotum could be Signs of Genital Warts

Before treating a rash, you will first need to establish what the underlying cause of the rash is. This is because, for instance when the rash is caused by an underlying sexual infection, the rash is a symptom and not the cause. Treatment will therefore not only involve clearing the symptoms but also getting rid of the underlying cause to prevent a flare-up of the symptoms.

Rash on scrotum only

A rash by definition is a change of the skin that affects the color, appearance, and texture. A skin rash can be localized in one part of the skin or affected all of the skin. Rash on scrotum only is an example of a localized skin rash.

Skin rash is known not only to change the color and texture of the skin but also cause the skin to feel itchy, become warm, bumpy, chapped, dry cracked, swell and become painful. When these symptoms are occurring on your inner thigh and scrotum, they could become annoying and embarrassing.

The possible cause of scrotum rash will include the following:


Folliculitis is a common skin condition in which the hair follicles become inflamed. The inflammation is mostly caused by bacterial or fungal infection. The condition will fast start as small red itchy bumps or a white-headed pimple around the scrotum. Left untreated, folliculitis could spread and turn into non-healing crusty sores.

A scrotal rash caused by folliculitis is not life threatening, it can, however, be itchy, sore and embarrassing. Severe infection can cause permanent hair loss and scaring on your testicular sac. Mild cases of this condition will clear on with basic self-care measures.

Razor bumps or barber’s itch

Razor bumps are the other possible cause of itchy skin rash on the scrotum. Razor bumps are a common skin condition that happens after shaved hair grows back into the skin instead of penetrating out of the skin.

The bumps are medically referred to as either barber’s itchy, folliculitis barber traumatica, scarring pseudofolliculitis or simple as shave bumps. These bumps are known to cause irritation and a feeling of a burning sensation on the skin after shaving. The rash is common on the chin and around the pubic area including the scrotum.

The most effective way to prevent this rash is by not shaving, but since most people would not want this, the other possible ways to reduce the occurrence would be to: have a hot shower before shaving, use shaving gel, shave in the direction of the hair to reduce irritation and finally apply a cold compress on the shaved area to soothe the skin and prevent hair from curling back.

Wearing tight clothes

Judy Foreman of the Nationally Syndicated Fitness, Health and medicine Columnist agrees that wearing tights, skin-hugging pants, pantyhose and other garments such as underwear with the tight elastic band can all cause folliculitis. As said, folliculitis is the inflammation of the hair follicles found on the skin.

Wearing this kind of clothing will push the naturally occurring skin bacterium and fungus deeper inside the skin causing infection. This process is exacerbated by sweating. When you wear tight clothing and shave too close to the skin, then you are more likely to develop a slightly different problem called pseudofolliculitis.

Lichen simplex

Lichen simplex chronicus is another skin disorder characterized chronic itching and scratching. The constant scratching and itching cause thick. Leathery, brownish skin. This skin condition is also referred to as neurodermatitis and will often start with a patch of itchy skin.

With this condition, it is common develop several itchy spots on the affected area typically on the neck, wrist, forearm, thigh and ankle. The condition is neither life threatening nor contagious, the itching can, however, be so intense to disrupt normal life. Over the counter and prescription creams can be used to ease the itching and irritating caused by the condition on thighs and scrotum.

Genital warts

Genital warts are small fleshy growths, bump or changes in the skin that occurs around the genital and anal area. The bumps are a result of a viral infection caused by human papillomavirus. Just like lichen simplex, this bumps are painless and do not pose any serious threat to your health.

The virus causing these bumps can be transmitted from one person to the other through the close physical skin to skin contact. The virus can also spread during vaginal or anal sex and by sharing sex toys [National Health Service UK]. You do not need to have penetrative sex to pass the infection on.


This is a medical condition characterized by excessive sweating. Excessive sweating in the affected area is caused by over activity of the nerves linked to the sweat glands. The condition is highly linked to genetic with close to 4o percent having siblings or parents with the same condition.

Poor hygiene around the genital are together with wearing tight fitting clothes make a conducive environment for the growth and spread of skin bacteria, this could lead to skin forming condition such as jock itch or yeast infection. This is common causes of scrotal rash.

Rash on scrotum picture

Throughout this article, we have provided images of how different rash might cause the skin to appear. Remember the appearance of the scrotal rash will vary depending on what the underlying cause of the rash is. For a painful, itchy and irritating rash that last for more than a week, you will need to seek professional medical attention to have it diagnosed and treated.

Rash on Scrotum Picture
Rash on Scrotum Picture

Red rash on scrotum and inner thigh

A red itchy rash on scrotum and inner thigh is common to most males. The condition can be annoying and very discomforting especially when the urge to scratch comes happens when in public. Most of the rash occurring in this area will in most cases be accompanied by itchy and painful bumps.

People with Dry skin are at the highest risk of developing such rash. Dry skin can be an uncomfortable condition marked by scaling, itching, and cracking. The condition could also occur due to a variety of reasons. For some people, the condition is naturally occurring, whereas those with oil skin could develop the dryness from time to time.

Dermatitis is the medical term that defines extreme cases of dry skin. The condition could be caused by exposure to dry weather, hot condition, hot water and use of certain skin chemicals. The different forms of dermatitis are irritant contact, allergic contact, seborrheic dermatitis or atopic dermatitis also known as eczema.

Chafing from cycling or running is the other possible cause of a red rash on inner thighs and scrotum. Skin chafing should be treated. To reduce the pain, irritation and further damage to the skin. To do so, you will need to gently clean the chafed area with water and thoroughly dry it. Apply an oily substance such as mild petroleum jelly. If the area is too painful, swollen, crusted or bleeding, you will need to have a professional skin care practitioner look at it and recommend how best to treat it.

Apart from the already listed causes, the rash on scrotum and inner thighs could be caused by Scabies. Scabies is a contagious skin infection marked by severe skin itching, small raised red spots and a feeling of burning sensation around the genital area including the scrotum, the penile shaft, and inner thighs. Scabies is a dermatological condition caused by Sarcoptes scabies an eight-legged microscopic mite.

Itchy Rash on scrotum sac

An itchy rash can occur on any part of the body. An itchy rash occurring on scrotum sac can be annoying and embarrassing. This kind of embarrassment is so real that most people will shy away from seeking proper medical attention. This should not be the case. The best way to treat and get rid of scrotal rash is by treating the underlying cause of the rash.

Not all rash occurring on your pubic area is a sexually transmitted infection. simple causes of the rash such as those caused by razor bumps, fungal infection such as jock itch, and Fordyce spots on scrotum are harmless and do not pose any risk whatsoever to your general health.

Not all rash are however harmless, the rash occurring on scrotum could also be a sign of testicular cancer that is why it is important to report of such rash immediately to your dermatologist when they occur.

Rash on scrotum and shaft

When left untreated for long, a scrotal rash will start to spread to adjacent parts of the pubic area, the rash will start to appear on inner thighs, on the penile shaft all the way to the inner butt and around the anus. This can be painful can could cause difficulties in walking and doing simple tasks.

A rash that spreads from the scrotum to the penile shaft is most likely to be caused by skin condition such as jock itch. This is a fungal infection of the groin area. The condition is known to produce a very intense itch and is in most cases associated with red or pink rash. The condition is primarily a skin condition in men.

Genital herpes, a disease characterized by blisters around the genital area is another possible cause of a rash on the penis shaft and scrotum. Other causes will include candindal and fungal infection of the scrotum and the shaft.

What causes rash on scrotum?

A rash on scrotum can be caused by any of the following skin conditions. The symptoms of the rash will vary from one person to the other depending on what the underlying cause of the rash is. For correct diagnosis and treatment of the rash, you will need to visit a dermatologist.

Rash on scrotum STD

For most people, the common cause of a rash on the scrotum, the penile shaft or anywhere around the groin area is as a result of sexually transmitted infection. Common STDs is known to cause an itchy and irritating rash on your pubic area will include genital herpes, genital warts, and others. Most of this condition are contagious thus can be transmitted from one person to the other.

STD rash on Scrotum Symptoms
STD rash on Scrotum Symptoms

Diaper rash on scrotum

A diaper rash on the scrotum is common in children who wear diapers. A diaper rash can also be caused by an infection such as yeast, bacterial or viral infection. For older people, the rash can also be caused by friction irritation around the thighs and the groin area, chemical allergies from using perfumes and chemical soap.

Diaper rash on scrotum pictures

Here is how a diaper rash on scrotum looks like

Diaper Rash on Skin Picture
Diaper Rash on Skin Picture

Heat rash on scrotum

Heat rash, also known as prickly heat is an itchy inflammation of the skin, the rash is common in hot moist weather. The rash can be itchy, irritating and painful. To help prevent heat rash, avoid situation that leads to excessive sweating, this include

  • Hot, humid environments
  • Strenuous exercise when it is very warm
  • Switch on the air condition and
  • Take a cool shower and bath

Heat rash on scrotum pictures

Below are is an image of how a heat rash on scrotum looks like.

Heat Rash on Scrotum Skin Picture
Heat Rash on Scrotum Skin Picture

Scrotal dermatitis

Scrotal dermatitis is a very common skin condition. Scrotal dermatitis is not considered a separate disease entity, it is usually considered a condition similar to contact dermatitis occurring elsewhere on the body.

Scrotal dermatitis is in most cases characterized by severe itching, erythema scaling and lichenification of the scrotal skin.

Other causes

Apart from the above-mentioned skin condition causing scrotal rash, other causing might include,

  • Scrotal psoriasis
  • Yeast infection babies
  • Jock itch

Rash on scrotum baby, toddler

Unlike in adults, a scrotal rash on babies can be more painful, irritating and causes severe itching. All those could cause also of pain to your child. The rash could cause sleepless nights to your baby, causing skin color to change and small bumps to appear.

Below are some of the possible causes of scrotal rash on babies and toddlers.

  1. Diaper rash, this is an inflammatory reaction localized t the area of the skin covered by a diaper. The rash can be caused either a yeast, bacterial or viral infection. It could also be caused by friction irritation, chemical allergies, decomposed sweat or plugged sweat glands.
  2. Atopic dermatitis also called eczema, it is common in children. the condition is known to make your skin red and itchy, it is a chronic condition that tends to flare periodically and then subsides [mayo clinic]
  3. Same to eczema, Contact dermatitis, is another skin condition known to cause an itchy rash. It is caused by a substance that comes into contact with the skin.
  4. Wearing tight clothes for long might also irritate the skin causing an itchy painful rash.

Treatment for rash on scrotum

Treating the underlying cause of the scrotal rash is the best way to get rid of the rash and reduce the chances of having flare-ups. That means you need to have the rash diagnosed by a professional health care provider. For mild symptoms however you could manage and control them using over the counter medication.

For irritation, itching, burning sensation, swelling and inflammation accompanying the rash, Topical ointments can be of help in managing these symptoms. If the ointment causes more irritation or the rash fails to respond to the treatment, please seek medical attention.

Antifungal creams and gel can be helpful in cases of fungal infection causing the rash. For bacterial or viral infection Oral or topical antibiotics might be used depending on the extent of the bacterial infection. Topical Corticosteroids may also be used to treat skin rash caused by dermatitis, eczema, and psoriasis.

How to Get Rid of Rash on Scrotum, Shaft and Balls – Video

Home remedies for rash on scrotum

As said, most of the skin rashes are harmless. Some might even heal on their own without any medical treatment. To speed up the removal of rash on the scrotum, here are some simple natural occurring remedies you can use.

Tea tree oil

Tea tree oil a natural antifungal with antibacterial properties that make it work as a good deep cleaning agent. Tree oil can be an effective remedy for relieving the skin of the itching, irritation, and inflammation on the scrotal skin.

Apply some apple cider vinegar

Apple cider vinegar is another excellent remedy you could use to control and manage many skin condition including a rash on the scrotum. The remedy is naturally antifungal and antibacterial making it the go-to home remedy for jock itch, yeast infection, and diaper rash.

When using apple cider, you need to fats dilute it by adding a few drops of apple cider in a cup of water.

Use Listerine

Listerine is rich of an antiseptic, antifungal and antibacterial solution. This quality makes it an even more effective remedy not only for treating fungal infection but also for preventing and treating bacterial infection.

To prevent and manage the rush you will need to:

  • Maintain proper hygiene
  • Observe a proper diet so that your body is functioning correctly
  • Avoid wearing tight clothes for long hours
  • Maintain a proper shaving technique to prevent razor bumps on your pubic area
  • Use mild soaps and avoid harsh skin products especially for children.

Sources and references