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Welcome to CholinergicUrticaria.net
Welcome to the official site about Cholinergic Urticaria. On this site, you can find a treasure of useful information regarding a physical type of hives, known as Cholinergic Urticaria. You can find out exactly what cholinergic urticaria is, common medical treatment options, symptoms, view pictures, talk to others with this condition on a live forum, and much more.
Cholinergic Urticaria- A Brief Overview
Cholinergic Urticaria is a medical term used to describe a subcategory of physical urticaria (hives). It is characterized by a hypersensitive response in the skin as a result of the body increasing in temperature, or the precipitating release of sweat. Individuals with this physical heat hives condition often ask, “Why do I itch when I get hot or excercise?” –as this is one of the most common symptoms when a patient presents.
Individuals may experience a cholinergic urticaria reaction in response to any activity that increases overall body temperature (or causes a sweat release). Some examples include:
- Taking a hot shower or bath
- Eating spicy foods
- Exercising or doing physical activities that increase body temperature
- Stress
- Emotional response (sadness, anxiety, anger)
- Changing from a cool environment to a hotter environment without allowing the body time to slowly acclimate to the temperature difference (such as walking from a cold room to a hot room)
Individuals experiencing cholinergic urticaria are otherwise healthy and exhibit no symptoms unless they are forced to experience a heat stimulus (as mentioned above). At that point, they may have a hives response to the increase in temperature.
This condition gets its name from 2 sources:
- “Cholinergic” which means “related to acetylcholine.” Acetylcholine is a chemical used in the parasympathic nervous system. It acts as a neurotransmitter. Acetylecholine seems to be involved in cholinergic urticaria reactions. It appears that when acetylcholine is released at the nerve endings in the skin, this can initiate a hives response.
- “Urticaria” originates from the Latin word urtica, which means stinging nettle. A stinging nettle is the name of a plant that has small hair-like needles that sting if touched by humans. In urticaria, histamine is released which produces a very prickly and itchy feeling in the skin.
Cholinergic Urticaria is often referred to as “heat hives” or “heat urticaria.” Individuals often feel a burning, itchy and prickly feeling during an attack, which subsides once the individual is able to cool down or reduce body temperature.
—–>Continue reading more on the Cholinergic Urticaria Definition.
Learn More About Cholinergic Urticaria Right Now, Just Visit a Link Below:
- Cholinergic Urticaria Causes–Learn some of the physiological causes of cholinergic urticaria. Why does Cholinergic Urticaria Develop in the first place?
- Cholinergic Urticaria Symptoms–What are the symptoms of Cholinergic Urticaria? Learn the signs and symptoms of Cholinergic Urticaria (hives).
- Cholinergic Urticaria Treatment Options–Learn about different treatment options for cholinergic urticaria. Is there a cure for cholinergic urticaria? Can it be treated?
- Cholinergic Urticaria Pictures–See photographs and images of individuals during a cholinergic urticaria attack. Pictures of pinpoint hives and flushing.
- Cholinergic Urticaria F.A.Q.–Read some frequently asked questions about cholinergic urticaria.
- Cholinergic Urticaria Research Articles and Studies–Find resources and links to popular research studies and medical articles regarding Cholinergic Urticaria. Coming Soon.
- Cholinergic Urticaria Polls–Take some polls or view poll data taken from this site.
- Cholinergic Urticaria Support Forum–Connect with other individuals living with Cholinergic Urticaria.
- Cholinergic Urticaria Blog–Read my blog for tips and updates of how I manage my Cholinergic Urticaria.
- Special Message to Researchers, Scientists, and Doctors–Are you a researcher, medical professional, or student looking for more information on Cholinergic Urticaria? Please visit this page for more information on how you can learn more about Cholinergic Urticaria.
Recent Cholinergic Urticaria Blog Posts:
For all blog posts, visit my Cholinergic Urticaria blog.
Recent Cholinergic Urticaria Forum Posts:
For more forum posts, visit the cholinergic urticaria forum.
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This post was written by Ben on February 22, 2010


