Which are the causes of Multiple Chemical Sensitivity?

See some of the causes of Multiple Chemical Sensitivity according to people who have experience in Multiple Chemical Sensitivity


Multiple Chemical Sensitivity (MCS) is a condition characterized by a heightened sensitivity to various chemicals and environmental triggers. Individuals with MCS experience adverse reactions to low levels of substances that are commonly found in everyday products and environments. While the exact causes of MCS are not fully understood, there are several factors that are believed to contribute to the development of this condition.



Chemical Exposure: One of the primary causes of MCS is exposure to chemicals. Prolonged or repeated exposure to certain chemicals, such as pesticides, solvents, cleaning products, fragrances, and pollutants, can trigger sensitivities in susceptible individuals. These chemicals can disrupt the normal functioning of the immune system and the central nervous system, leading to the development of MCS.



Genetic Predisposition: Some researchers believe that there may be a genetic component to MCS. Certain genetic variations may make some individuals more susceptible to developing sensitivities to chemicals and environmental triggers. However, more research is needed to fully understand the genetic factors involved in MCS.



Chemical Injury: In some cases, MCS can be triggered by a specific chemical injury or exposure. For example, a severe toxic exposure or poisoning incident can lead to the development of MCS in certain individuals. The body's response to the initial exposure can result in a heightened sensitivity to chemicals, even at low levels, in the future.



Immune System Dysfunction: Dysfunction of the immune system is believed to play a role in MCS. It is thought that individuals with MCS have an overactive immune response to certain chemicals, leading to the development of symptoms. This immune dysregulation can result in inflammation and other physiological changes that contribute to the symptoms experienced by individuals with MCS.



Central Sensitization: Central sensitization refers to an abnormal amplification of sensory signals in the central nervous system. It is believed that individuals with MCS may have an enhanced sensitivity and reactivity to sensory stimuli, including chemical exposures. This heightened sensitivity can lead to the development of symptoms even at low levels of exposure that would not affect most people.



Environmental Factors: Environmental factors, such as poor indoor air quality, can contribute to the development and exacerbation of MCS. Exposure to mold, volatile organic compounds (VOCs), and other pollutants can trigger symptoms in individuals with MCS. Additionally, stress and emotional factors can worsen symptoms and make individuals more susceptible to chemical sensitivities.



Previous Health Conditions: Some individuals with MCS have a history of pre-existing health conditions that may make them more susceptible to developing sensitivities. Conditions such as asthma, allergies, chronic fatigue syndrome, fibromyalgia, and other chronic illnesses have been associated with an increased risk of MCS.



Psychological Factors: While the physiological mechanisms underlying MCS are well-documented, psychological factors can also influence the development and severity of symptoms. Stress, anxiety, and other psychological factors can exacerbate symptoms and make individuals more sensitive to chemical exposures.



Overall, the causes of Multiple Chemical Sensitivity are multifactorial and complex. It is likely that a combination of genetic predisposition, chemical exposures, immune system dysfunction, central sensitization, and environmental factors contribute to the development of this condition. Further research is needed to fully understand the underlying mechanisms and to develop effective treatments for individuals with MCS.


by Diseasemaps

I understand there can be many underlying causes to MCS. I believe mine is tied to fibromyalgia and overexposure to chemicals at a particular time in my life.

3/30/17 by KilkennyGirl 1000

There are three ways someone becomes chemically sensitive: 1. Massive Exposure (pesticide application, mold infestation, etc) 2. Life-changing event (major surgery, childbirth, etc...something that changes the body chemistry) 3. Low level of exposure over a long period of time (most typical way... our bodies just cannot accept more pollutants)

10/9/17 by Andrew 1300

The main causes of MCS would be DNA and exposure to toxins/chemicals.

10/24/17 by Paul 3000

Environmental toxins, impaired immune system, methylation errors, glutathione deficiency.

10/27/17 by JLMcK 5550

Exposure to tons of harmful chemicals at one time or to small amount of chemicals for a long time.

4/12/18 by needinfo&help 1500

The most common cause is an intense exposure to a chemical knowingly or possibly not known at the time.

1/6/19 by Cindi 3050

Again, a difficult question. Many things can trigger it. It can be many small exposures or one big one. I actually think that everyone is affected but some of us are more sensitive so we can avoid the toxins. I know that I have suffered all my life but didn't know what it was until recently. I was diagnosed with facial neuralgia around seven years old and have never been able to drink very cold or hot liquids. I had a difficult birth resulting in being stuck for 72 hours in my mother's vagina. Nine weeks later the UK had the worst pollution ever recorded to date with the London smog. I helped my uncle on the farm from the age of seven with things like dipping the sheep! We always ate food we grew so that was good.

4/1/19 by Susan 2500

Harsh chemicals. They are poisoning everything and making us all sick, including the planet.

6/4/19 by Heather 3000

The causes of multiple chemical sensitivity are unknown. It can be triggered by a number of things including reactions to chemicals, exposure to toxins or environmental irritants, or illness. More research needs to be done to determine if there is a genetic basis to MCS.

7/21/19 by Trisha 1350

Immunological reactions to your environment, if there are no tests to diagnose the condition, you won’t have known when your first symptom was as you would not have necessarily have recognised it as anything to do with MCS, as your condition progressed then you could recognise and make a connection between your symptoms and your triggers.

8/22/19 by Carmen Rosemarie 2550

A build up of toxins and an inabliity to process what you use to be able to. This is still being researched, but as evidenced by knowing what makes you ill, there is the clue.

11/18/19 by Angie P. 5000

Chronic or acute toxic chemical exposure...sometimes EMF exposure can also start the process or worsen things.

12/12/19 by Joanna 6200

Other immune deficiencies can cause MCS, but I personally was diagnosed due to an overexposure over time.

1/24/20 by Tiffani 1300

There is not much known of MCS and what causes it. There are various types of MCS (fragrance sensitive, food allergy, enviromental impact).

1/30/20 by Noeleen 2500

I feel that anyone can get MCS. Once our body hits its toxic overload - we have MCS. That can be caused by many many things and combinations. For example - years of chlorine exposure and then getting new carpet and bam! You’ve got MCS. It all depends of a persons ability to clean out the toxins from their body - how healthy their liver is -and how exposed daily that they are. Sometimes just a neighbor spraying fungicide is enough to put you over the tipping point. Everyone’s story of how they got MCS is unique.

2/11/20 by Rheama 1600

Over exposure, during pregnancy of the mother, or over exposure by conditions (places) in life.

3/7/20 by MCSzombie 6220

Brain injury Chemical injury Genetic predisposition Co-occurring autoimmune illness or cancer Neurological condition Long-sustained physical or psychological trauma

9/27/20 by Rebecca St. Martin 3570

They aren't 100% sure. They know mold, some genetics, lyme disease, exposure to chemicals over a prolonged period or a 1 time serious chemical exposure can cause mcs

11/12/20 by shelley 3650

MCS is believe to be caused from a genetic defect. It may be inherited. My sister also has fibromyalgia but does not have the chemicals.

2/21/21 by Christi 2350

Usually a toxic overload

7/24/21 by Serenity 2500

Genetics combined with toxic chemical exposures cause MCS

11/11/21 by kola05 2620

I wish I knew! In my case most. petrochemical derivates.

11/3/22 by Eduardo 1700
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SERIOUS POISONING BY CHEMICAL SYNTHETIC

5/10/17 by Emilio. Translated
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environment,and maybe our immune system more sensitive, but harm it is doing to society in general so that you do not notice it as we, but many diseases are because of the system of life we have

6/11/17 by Esther. Translated
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contacts with chemicals environmental, calambrazo cervical and I think there's an issue of toxic in the body adrenaline, acid lactate etc... that make the brain, wl cueepo is desnutra and shoot and inflamed nervous system, muscle and digestive. I think that the body does not desibtoxica well ( liver, sweat, kidneys.) I believe that affects thoughts, brain and emotions, the intoxication

9/9/17 by Karma. Translated
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I suspect that the medicines for the chronic migraine, especially topiramate and triptans. If you do not are the cause, what is certain is that the have enhanced.

9/10/17 by Pilar. Translated
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Constant exposure to the chemical

11/9/17 by Marta Elena. Translated

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