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Vibratory urticaria
Reviewed by Medicinsk Expert•Last updated: 2026-10-22•Condition

Vibratory urticaria

Vibratory urticaria is a rare physical allergy where skin exposure to vibration, friction, or stretching triggers hives, swelling, and itching within minutes.

Overview & Symptoms

Vibratory urticaria is a condition in which exposing the skin to vibration, repetitive stretching, or friction results in allergy symptoms such as hives (urticaria), swelling (angioedema), redness (erythema), and itching (pruritus) in the affected area. The reaction can be brought on by towel drying, hand clapping, running, a bumpy ride in a vehicle, or other repetitive stimulation.

Headaches, fatigue, faintness, blurry vision, a metallic taste in the mouth, facial flushing, and more widespread swelling (especially of the face) can also occur during these episodes, especially if the stimulation is extreme or prolonged. The reaction occurs within a few minutes of the stimulation and generally lasts up to an hour. Affected individuals can have several episodes per day.

Frequency

Vibratory urticaria is a rare disorder; its prevalence is unknown. It belongs to a class of disorders called physical urticarias in which allergy symptoms are brought on by direct exposure to factors such as pressure, heat, cold, or sunlight. Physical urticarias have been estimated to occur in up to 5 per 1,000 people.

Causes

Vibratory urticaria can be caused by a mutation in the ADGRE2 gene. This gene provides instructions for making a protein found in several types of immune system cells, including mast cells. Mast cells, which are found in many body tissues including the skin, are important for the normal protective functions of the immune system. They also play a role in allergic reactions, which occur when the immune system overreacts to stimuli that are not harmful. The specific role of the ADGRE2 protein in mast cells is not well understood.

The ADGRE2 protein consists of two parts (subunits) that interact with each other: an alpha subunit that lies on the outside surface of the cell and a beta subunit that crosses the cell membrane and extends into the cell. The ADGRE2 gene mutation that causes vibratory urticaria changes a single protein building block in the alpha subunit, altering the protein structure and leading to a less stable interaction between the two subunits. This fragile connection can be more easily broken; vibration, friction, or stretching of the skin can disrupt the association between subunits in mast cells. Researchers suggest that once the subunits are disconnected, the beta subunit signals the mast cells to react and produce the allergy symptoms in the skin that occur in vibratory urticaria.

Some people with vibratory urticaria do not have a mutation in the ADGRE2 gene. In these affected individuals, the cause of the disorder is unknown.

Associated Genes

  • ADGRE2

Inheritance

This condition is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder. In most cases, an affected person has one parent with the condition.

Other Names for This Condition

  • DDU
  • Dermodistortive urticaria
  • VBU
  • Vibratory angioedema

Frequently Asked Questions

Individuals should identify and minimize exposure to repetitive mechanical stimuli that trigger mast cell degranulation. Common triggers include vigorous towel drying, clapping hands, running or jogging on hard surfaces, and riding in vehicles over rough terrain. It is advisable to use soft, gentle motions when drying skin, wear loose-fitting clothing to reduce friction, and avoid activities that involve repetitive stretching or vibration of the skin. Keeping a symptom diary can help pinpoint specific triggers unique to the individual, allowing for more precise lifestyle adjustments to reduce the frequency and severity of episodes.
The primary treatment for vibratory urticaria is the use of non-sedating antihistamines, which help block the histamine release that causes hives and itching. In many cases, a daily prophylactic dose of an antihistamine is recommended to prevent reactions before exposure to known triggers. For more severe cases or those that do not respond adequately to standard antihistamines, doctors may prescribe higher doses or add other medications, such as leukotriene receptor antagonists or omalizumab, which targets IgE antibodies. It is important to work with an allergist or dermatologist to find the most effective medication regimen for individual needs.
Symptoms of vibratory urticaria usually begin within a few minutes of the triggering stimulus. The reaction typically peaks rapidly and then subsides, with hives, swelling, and itching generally lasting up to one hour after the exposure has ceased. However, if the stimulation is prolonged or intense, the symptoms may persist longer or be more severe. Systemic symptoms such as headache, fatigue, or faintness can accompany the skin reaction, particularly in cases of widespread exposure, and may take slightly longer to resolve than the local skin symptoms.
While most episodes of vibratory urticaria are limited to the skin and are uncomfortable, they can occasionally lead to systemic reactions that pose a risk to health. Signs of a severe reaction include widespread swelling (angioedema), particularly of the face, lips, or throat, which can compromise breathing. Other concerning symptoms include dizziness, fainting, rapid heartbeat, and a metallic taste in the mouth. If an individual experiences difficulty breathing, swelling of the tongue or throat, or feels lightheaded after a trigger, they should seek emergency medical attention immediately, as these signs may indicate anaphylaxis, a rare but serious allergic reaction.
Source: MedlinePlus, National Library of Medicine

MedlinePlus brings together authoritative health information from the National Library of Medicine (NLM), the National Institutes of Health (NIH), and other government agencies and health-related organizations.

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