Dark Purple, Squishy Bump on the Face? It Could Be a Venous Lake

Meta description: A soft blue or purple bump on the lip, jawline, ear, or face may be a harmless venous lake—but other skin conditions can look similar. Learn the signs, treatment options, and when to see a dermatologist.

Finding a dark purple bump on the face can be alarming, especially when it looks like a blood blister but appears without an obvious injury.

One possible explanation is a venous lake, a common and usually harmless vascular spot caused by a small widened vein close to the surface of the skin.

Venous lakes are often soft, blue or purple, and compressible. They commonly develop on sun-exposed areas such as the lower lip, ears, face, and neck. A bump near the jawline could potentially fit this description.

However, a photograph or written description is not enough to identify a skin lesion safely. Blood blisters, benign moles, angiomas, and certain skin cancers can sometimes have a similar color.

Here is what you should know before assuming that a purple bump is harmless.

What Is a Venous Lake?

A venous lake is a small collection of blood inside a widened superficial vein.

It may appear as a flat spot or slightly raised bump and is usually dark blue, blue-black, or purple. Most lesions measure between approximately 2 and 10 millimeters across, although their size can vary.

Despite the word “lake,” the lesion is not a sac of loose blood. It is an enlarged venous space within the skin.

Venous lakes are benign, meaning they are not cancerous. They are also not contagious and cannot spread from one person to another.

What Does a Venous Lake Look and Feel Like?

A typical venous lake may have the following characteristics:

• Blue, dark purple, or blue-black color

• Soft or slightly spongy texture

• Flat or dome-shaped appearance

• Smooth surface

• Usually painless

• Slow or unnoticeable growth

• Commonly found on the lip, ear, face, neck, or upper body

• May temporarily flatten or fade when gently compressed

The ability to compress is one of its most recognizable features.

When gentle pressure is applied, blood may temporarily drain from the widened vein, causing the spot to flatten and lose some of its color. After the pressure is removed, the bump usually refills.

Dermatologists sometimes use a transparent instrument called a dermatoscope or press a glass slide against the lesion to observe this response.

However, people should not squeeze, puncture, or repeatedly press an unidentified skin growth in an attempt to diagnose it themselves.

Why Do Venous Lakes Form?

The exact cause is not always known.

Long-term sun exposure is thought to play an important role because venous lakes frequently develop on areas that receive years of ultraviolet radiation, particularly the lower lip, ears, face, and neck.

Over time, sunlight can damage the skin’s connective tissue and reduce support around small blood vessels. This may allow a superficial vein to widen and become more visible.

Venous lakes are most frequently seen in middle-aged and older adults. They can occur in people of any skin tone and affect both men and women.

Smoking may also contribute to lesions around the lips, although not everyone with a venous lake has a history of smoking or extensive sun exposure.

Venous Lake or Blood Blister?

A venous lake may look remarkably similar to a blood blister, but the two conditions develop differently.

A blood blister usually forms after the skin has been pinched, rubbed, struck, or otherwise injured. Small blood vessels break while the upper layer of skin remains intact, trapping blood beneath the surface.

Blood blisters may:

• Appear suddenly after an injury

• Feel sore or tender

• Have a tense, blister-like covering

• Change color as they heal

• Gradually disappear within one or two weeks

A venous lake usually develops without a recent injury and tends to remain present indefinitely unless treated. It is often softer and may temporarily fade when compressed.

If a suspected blood blister does not begin healing, repeatedly returns, or appeared without a clear cause, it should be examined by a healthcare professional.

Other Conditions That Can Look Similar

A purple or blue skin bump is not automatically a venous lake.

Several other conditions can have a similar appearance, including:

Blue nevus

A blue nevus is a usually benign mole that appears blue, blue-gray, or blue-black because pigment-producing cells are located deeper in the skin.

Unlike a venous lake, a blue nevus is generally firm rather than soft and may not lose its color when compressed.

Cherry angioma

A cherry angioma is a benign growth made of small blood vessels. It usually appears bright red but can become dark red, purple, or nearly black, especially if irritated or clotted.

Blood blister

A blood blister develops after damage to blood vessels beneath the skin. Most improve naturally as the body reabsorbs the trapped blood.

Spider telangiectasia

This is a small visible blood vessel with thin branches extending from a central point. It typically looks different from a dome-shaped venous lake but may occasionally cause confusion.

Thrombosed vascular lesion

Blood can sometimes clot inside a vascular growth, causing it to become darker, firmer, or more painful than usual.

Melanoma

Melanoma is a serious form of skin cancer that can appear brown, black, blue, red, or a combination of colors. Some melanomas develop as raised or dome-shaped growths and may bleed or resemble a sore.

A purple lesion is much more likely to be benign than malignant, but color alone cannot provide a reliable diagnosis.

Other uncommon skin tumors

Certain uncommon skin cancers and vascular tumors may also appear red, blue, or purple. A rapidly growing purple nodule on the head or neck deserves prompt professional assessment, even when it is painless.

Warning Signs That Should Not Be Ignored

Arrange a medical examination if the spot is new, unexplained, or difficult to identify.

Seek prompt evaluation if it:

• Grows quickly

• Changes shape or color

• Develops irregular borders

• Contains several different colors

• Becomes firm or fixed in place

• Bleeds without being injured

• Repeatedly forms a crust

• Turns into an open sore

• Causes persistent pain or itching

• Disappears and then returns

• Fails to heal

• Looks noticeably different from other spots on the skin

Dermatologists commonly use the ABCDE method to identify potentially concerning pigmented lesions:

• A — Asymmetry: One half does not resemble the other.

• B — Border: The edges are irregular, blurred, or poorly defined.

• C — Color: Several colors appear within the same lesion.

• D — Diameter: The spot is larger than approximately 6 millimeters, although dangerous lesions can be smaller.

• E — Evolving: It is changing in size, shape, color, texture, or symptoms.

The “E” for evolving is particularly important. Any new or changing lesion should receive attention regardless of its size.

How Is a Venous Lake Diagnosed?

A dermatologist can often recognize a venous lake by examining its appearance and observing how it responds to gentle compression.

A dermatoscope allows the clinician to view structures beneath the skin surface that are not easily visible to the naked eye.

If the diagnosis remains uncertain, the doctor may recommend a biopsy. During a biopsy, a small sample—or sometimes the entire lesion—is removed and examined under a microscope.

A biopsy is not required for every venous lake. It may be appropriate when the lesion has unusual features or resembles a pigmented mole or skin cancer.

Does a Venous Lake Need Treatment?

A confirmed venous lake is harmless and usually does not require treatment.

Some people choose to have one removed because:

• They dislike its appearance

• It catches during shaving

• It is repeatedly injured

• It becomes sore

• It bleeds frequently

• It causes anxiety despite a confirmed diagnosis

Because these lesions involve blood vessels, removal should be performed by a qualified medical professional.

Trying to cut, drain, burn, freeze, or tie off the bump at home can cause significant bleeding, infection, scarring, and delayed diagnosis of a different condition.

Medical Treatment Options

Several procedures can be used to treat a venous lake.

Vascular laser

A vascular laser targets blood inside the enlarged vessel. The treated lesion may darken or form a temporary crust before gradually fading.

Different laser systems may be selected depending on the lesion’s depth, size, and location.

Electrocautery

Electrocautery uses controlled heat to destroy the widened blood vessel. A local anesthetic may be used to reduce discomfort.

Cryotherapy

Cryotherapy freezes the lesion with liquid nitrogen. It may cause temporary swelling, blistering, crusting, or pigment changes.

Sclerotherapy

A clinician injects a substance that causes the enlarged vessel to close. This technique is used selectively and must be performed carefully.

Intense pulsed light

Intense pulsed light may help target certain superficial vascular lesions, although it is not the ideal option for every case.

Surgical removal

Surgical excision is occasionally used when the diagnosis is uncertain or another method is unsuitable. Surgery leaves a scar, so it is not usually the first choice for a straightforward venous lake.

All procedures can cause side effects such as scarring, temporary discoloration, infection, or recurrence. A dermatologist can explain which option is most appropriate.

What Should You Do While Waiting for an Appointment?

Avoid repeatedly touching, squeezing, or scratching the bump.

If it is easily irritated during shaving, carefully shave around it rather than passing a blade directly over the lesion.

If accidental trauma causes bleeding:

1. Apply firm, continuous pressure with clean gauze.

2. Keep the pressure in place for several minutes without repeatedly lifting the gauze to check.

3. Clean the surrounding skin gently after the bleeding stops.

4. Cover the area with a clean dressing if necessary.

Seek urgent medical care if bleeding is heavy, does not stop with sustained pressure, or you take blood-thinning medication and cannot control it.

Taking a clear photograph with good lighting can help document whether the lesion changes while you wait for an examination. Include a ruler for scale when possible, but do not rely on photographs for diagnosis.

Can Venous Lakes Be Prevented?

There is no guaranteed way to prevent every venous lake, but protecting the skin from ultraviolet radiation may reduce long-term damage to superficial blood vessels.

Useful protective measures include:

• Applying broad-spectrum sunscreen to exposed skin

• Using a lip balm containing sun protection

• Wearing a wide-brimmed hat

• Seeking shade during periods of intense sunlight

• Avoiding tanning beds

• Not smoking

Sun protection also helps reduce premature skin aging and the risk of several forms of skin cancer.

The Bottom Line

A dark blue or purple, soft, compressible bump on the jawline, lip, ear, face, or neck could be a venous lake.

Venous lakes are common benign vascular lesions, particularly among middle-aged and older adults. They generally do not cause serious harm and often require no treatment.

However, several other conditions—including blood blisters, benign moles, angiomas, and skin cancer—can sometimes look similar.

Do not puncture or attempt to remove an unidentified purple bump at home. If the lesion is new, changing, bleeding, painful, growing, or simply uncertain, arrange an examination with a qualified healthcare professional or dermatologist.

In many cases, the diagnosis will be harmless. Confirming that diagnosis professionally is safer than trying to determine it from color, texture, or an online photograph alone.