What Are Black Spots On Scrotum?

Black Spots On Scrotum


The most private part for men is the scrotum. It carries the genital part of the body alongside its required internal coordinating organs and glands including the surrounded flesh covering inner thighs, back of the penis, and the upper hair space above the penile position, overall skin space coming under the scrotum. Scrotum supposedly needs to be more taken care of compared to other body parts. As it could not access under the coverage of two garments, it is the most common place to sweat more. The sweat could damage the skin texture to sensitive or prone to different infections that can casually or seriously happen over the scrotum body parts or skin space. Special care is to be taken during the bathing while, it is advised to wash or soap twice a time to simply be clear of any infection emergence or dilution. 

Black Spots on the scrotum

Black spots on your scrotum are usually caused by a condition called angiokeratoma of Fordyce. These spots are made up of blood vessels that have expanded, or dilated, and become visible on the surface of your skin.

They may feel bumpy and rough to the touch, and they’re normally dark purple or red rather than deep black. Angiokeratoma of Fordyce can also appear on the shaft of your penis and around your inner thighs.

These spots usually don’t cause concern, especially if you don’t have any other symptoms. Keep reading to learn why these spots appear, other symptoms you should watch out for, and what to expect from treatment.


Angiokeratoma is a condition in which small, dark spots appear on the skin. They can appear anywhere on your body. These lesions happen when tiny blood vessels called capillaries dilate, or widen, near the surface of your skin.

Angiokeratomas may feel rough to the touch. They often appear in clusters on the skin around the: penis, scrotum, vulva, labia majora

What are the different types?

Types of angiokeratoma include:

Solitary angiokeratoma. These often appear alone. They’re often found on your arms and legs. They aren’t harmful.

Angiokeratoma of Fordyce. These appear on the skin of the scrotum or vulva. They’re most commonly found on the scrotum in large clusters. This type can develop on the vulva of pregnant women. They’re not harmful but are prone to bleed if they’re scratched.

Angiokeratoma of Mibelli. These result from dilated blood vessels that are closest to the epidermis, or the top layer of your skin. They’re not harmful. This type tends to thicken and harden over time in a process known as hyperkeratosis.

Angiokeratoma circumscriptum. This is a much rarer form that appears in clusters on your legs or torso. You can be born with this type. It tends to morph in appearance over time, becoming darker or taking different shapes.

Angiokeratoma corporis diffusum. This type is a symptom of FD. It can happen with other lysosomal disorders, which affect how cells function. These conditions are rare and have other noticeable symptoms, such as burning of the hands and feet or vision problems. These angiokeratomas are most common around the lower body. They can appear anywhere from the bottom of your torso to your upper thighs.

What causes angiokeratoma of Fordyce?

In many cases, the exact cause of angiokeratoma of Fordyce is unknown. Some researchTrusted Source suggests that high blood pressure (hypertension) in the veins of your scrotum may play a role in their appearance.

They may also be more likely to appear if you’ve ever experienced:


irritable bowel syndrome

chronic constipation

Fabry disease (FD) is one of the only known causes of angiokeratoma of Fordyce. This condition is extremely rare, happening in only about 1 out of every 40,000 to 60,000 men.

Angiokeratomas can sometimes be a symptom of an underlying condition, such as the rare genetic disorder known as Fabry disease (FD). You may need to see a doctor for treatment to prevent complications.

FD results from a mutation in your GLA gene. This gene is responsible for producing an enzyme that helps cells break down fat. With FD, your cells can’t break down a certain type of fat that then accumulates throughout your body. Having too much of this fat in your body can hurt the cells in your heart, kidneys, and nervous system.

There are two types of FD

Type 1 (classic). Fat builds up in your body quickly from birth. Symptoms start appearing when you’re a kid or a teenager.

Type 2 (later-onset). Fat builds up more slowly than in type 1. You may not see any signs of the condition until you’re in your 30s or even as late as your 70s.

These spots usually show up in clusters. You may have as many as 100 spots on your scrotum at a given time. Although they may become irritated or bleed if you scratch them, they likely won’t cause you any pain otherwise.

Most people don’t experience any other symptoms alongside the black spots. If your spots are the result of FD, other symptoms may not appear until you’re older.


In addition to black spots on your scrotum, FD can cause:

1) Sharp pain in your hands and feet, especially after strenuous activity or exercise

2) Not sweating enough (hypohidrosis)

3) Ringing sounds in your ears (tinnitus)

4) Visible eye cloudiness

5) Bowel symptoms, such as diarrhea and constipation

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