Do you sometimes feel pain in different parts of your body for no reason? Maybe the pain has been there for a long time and never goes away. Or do you suddenly feel numbness, pins and needles, or burning sensations? If you have had such experiences, it will be very important for you to know about this condition called Central Pain Syndrome (CPS) , which we are going to talk about today.
What is Central Pain Syndrome?
Simply put, Central Pain Syndrome (CPS) is a condition where pain is felt continuously, that is , chronically, due to a problem with our nervous system . For example, if there is damage to our brain or spinal cord , or if we are in pain for a long time and our nervous system malfunctions, this condition can occur.
This is how it works. When the brain or nerve cells are damaged, the damaged cells don't function properly and start sending pain signals all the time. Or, because of ongoing pain, our nerve cells become very sensitive to pain signals. Then, those cells can mistakenly send pain signals even when there is no pain, or they can even misinterpret other signals as pain.
Treating this condition can sometimes be a bit difficult. Even with regular painkillers, and sometimes even strong opioid medications, this pain may not be relieved. But, don't worry. Doctors have now found new treatments and medications for this. They have been able to help many people with this condition.
Is this the same as fibromyalgia?
CPS and fibromyalgia are not the same thing. But there may be a connection between the two. Fibromyalgia is a chronic pain condition that affects your joints and muscles. People with fibromyalgia are more likely to develop CPS. This is because chronic pain changes the way their nervous system works.
Who is more likely to develop this?
Anyone who has had damage to the central nervous system, that is, the brain or spinal cord, can develop CPS. It can also develop in anyone who suffers from chronic pain. People with certain neurological conditions are more likely to develop it. For example:
- Between 8% and 10% of people who have had a stroke .
- Between 20% and 40% of people with spinal cord injuries .
- About 30% of people with multiple sclerosis .
How common is this condition?
It is estimated that about 7 million people worldwide suffer from this condition.
What are the symptoms of central pain syndrome?
With CPS, you may notice a number of changes in the way you feel pain:
- Where it hurts: The location of the pain depends on which part of the nervous system is affected.
- When it hurts: The pain of CPS is usually constant . However, for some people it can come and go. What's special is that this pain occurs without any danger or injury to the body.
- Pain intensity: Pain can usually range from moderate to severe. For some people, it may subside a little at times and then come back again.
- Changes in the sense of touch: People with CPS experience changes in the way they feel touch. This is related to pain. This can cause a feeling of numbness or pins and needles (paresthesia) .
- Time to start: CPS can start weeks, months, or even years after an illness, accident, or other relevant event.
- Environmental influences: CPS pain can be aggravated by cold weather, anxiety, stress , or sudden shock. Your level of physical activity can also affect pain.
- Your pain threshold: Surprisingly, people with CPS may sometimes have an increased ability to tolerate external pain, known as their pain threshold . This means that something that would hurt a normal person may not hurt them as quickly.
How to describe pain
People with CPS often describe their pain in similar ways. The most common descriptions are:
- Like burning.
- Like being stabbed by something sharp.
- It's like scratching badly.
- Painfully numb, like a pricking sensation
- Deep pain coming from inside the body, from the muscles
- It feels like squeezing, like tightening.
- Like cutting, like spreading
Other problems that come with this situation
Living with ongoing pain can have a significant impact on a person's mental health. As a result, people with pain conditions like CPS may also experience:
- Anxiety
- Depression ( possibly with suicidal thoughts)
- Memory loss, brain fog
- Constant fatigue or exhaustion
- Difficulty falling asleep
What causes this situation?
There are two main reasons why central pain syndrome develops: an injury or damage to your brain or spinal cord, or ongoing chronic pain.
Conditions that can damage the brain or spinal cord
There are several conditions that can damage the brain and spinal cord. Some of them are more common than others:
- Brain cancer or benign tumors .
- Brain surgery or spinal surgery .
- Concussions or traumatic brain injuries .
- Degenerative or inflammatory conditions, such as multiple sclerosis or Parkinson's disease .
- Epilepsy and non-epileptic seizure conditions.
- Infections.
- Spinal cord injuries .
- Stroke .
Think about it, there are some people who have had a car accident or a fall many years ago and their backs were injured. After a while, someone like that can develop this kind of severe pain. The reason for that is the damage to the spinal cord.
Conditions that cause chronic pain
Any condition that causes chronic pain can also cause CPS. As a result, doctors have linked CPS to a number of chronic pain-related conditions. Some of these include:
- Arthritis- related conditions, for example osteoarthritis .
- Back pain .
- Cancer .
- Chronic fatigue syndrome.
- Chronic pelvic pain .
- Complex regional pain syndrome (CRPS) .
- Fibromyalgia .
- Inflammatory conditions such as rheumatoid arthritis , psoriatic arthritis , lupus, or Sjögren's syndrome .
- Irritable bowel syndrome.
- Joint pain .
- Migraines .
- Peripheral neuropathy (this is most commonly caused by type 2 diabetes) .
- Postherpetic neuralgia - pain from nerve damage that's a side effect of shingles .
- Temporomandibular joint (TMJ) disorders .
Genetics
Some studies have found that genes play a role in the development of central pain syndrome. Specifically, if someone in your family – that is, your mother, father, siblings, or children – has the condition, your risk of developing this type of pain condition may be up to eight times higher than others! But the exact genetic changes that contribute to this have not yet been identified.
How does this condition affect my body?
One way to think about pain and its effects is to think of your body as a large, complex building. Then, our nervous system, which senses and processes pain throughout the body, is like a fire alarm system in that building. When the nervous system senses that there is an injury or damage somewhere in the body, it sounds this 'bell' to let us know that there is a problem.
There are two types of pain:
- Acute pain: This is your body's response to an illness or injury. It goes away within three months or less as you recover or the injury heals.
- Chronic pain: If acute pain continues for three to six months, it becomes chronic pain.
Normal pain process
All over our bodies, like a network of smoke detectors or heat sensors in a fire alarm system, there are nerve endings that are sensitive to various things that cause pain. When nearby cells are damaged, some of these chemical warning signals are released into the bloodstream. Your nerve endings detect those chemicals and send high-priority signals to your brain via the spinal cord. The brain interprets those signals as pain and sends signals to other parts of the brain to take action to protect you. For example, if your hand touches something that is hot enough to burn you, the nerve endings detect those signals and send signals to your brain, so you quickly pull your hand away.
What happens with central pain syndrome?
Central pain syndrome is like a malfunction in the fire alarm system in your body. These malfunctions can take many forms.
Changes due to injury or damage
Central pain syndrome caused by injury or damage affects the area differently:
- Brain: Damage to the brain can cause problems with the way the brain processes pain signals. This can cause the brain to incorrectly process and send signals as if something were actually causing physical pain.
- Spinal cord: Many signals from parts of the body to the brain must reach the spinal cord before they can reach the brain. If the spinal cord is damaged, the affected nerve cells can malfunction and send pain signals that feel like they are actually in pain. These signals are not from an actual injury (but they are real).
Changes due to chronic pain
Your body gives high priority to pain signals because they want to protect you from further harm. But when you have chronic pain, your nervous system has to process these high-priority signals more often and for longer periods of time than normal.
Over time, the way your nervous system and brain process pain signals begins to change. Typically, the nervous system becomes overly sensitive to pain, or it becomes so sensitive that it interprets non-painful signals as pain.
- Hyperalgesia: This is a Greek word meaning 'excessive pain'. What happens here is that the nervous system amplifies pain signals, making the pain feel worse than it actually is.
- Allodynia: This is also a Greek word, meaning 'other pain'. This is when something that is not painful, such as a normal touch, is perceived as pain due to a defect in the nervous system's ability to send, receive, or process signals. For example, when a piece of cloth touches the body, it causes unbearable pain.
Because pain affects other systems in your body, especially your hormones, immune system, and the body's self-repair processes, chronic pain and CPS can disrupt the way those systems work. It can also affect your endocrine system , causing things like adrenal disorders .
How is this condition diagnosed?
Central Pain Syndrome (CPS) can sometimes be difficult to diagnose because pain is experienced differently by everyone. Therefore, a doctor will need to gather detailed information about your pain. This may include:
- Location: Where does the pain occur? Is the pain in one place, or only on one side of the body?
- Description of the pain: What does the pain feel like? Is it burning? Is it stabbing?
- Timing: When did the pain start? Does the pain occur at a specific time of day or at a specific time of day?
- Effects from outside circumstances: Does the pain change depending on your environment (e.g., ambient temperature, noise level, stress or anxiety in your life)?
- Medical history: Do you have any injuries, problems, or medical conditions that could contribute to this pain?
- Other symptoms: Are you experiencing any other symptoms? Even if they may seem unrelated to the pain, please mention them. Is there swelling around the area of pain, tenderness, or any other symptoms?
What tests are done to diagnose this condition?
Depending on the situation, doctors may also order diagnostic, imaging, or lab tests. Lab tests are often done to check for an unknown inflammatory disorder or immune disorder that could be causing your pain. Your doctor can explain to you exactly what tests are recommended for your specific situation and condition, and why they are recommended.
If central pain syndrome is caused by an injury to the brain or spinal cord, certain diagnostic and imaging tests can help to diagnose it. These tests include:
- Electroencephalography (EEG) .
- Magnetic Resonance Imaging (MRI) .
- Magnetoencephalography (MEG) .
- Positron Emission Tomography (PET) scans .
There is another special type of MRI test that can help in cases like this. It is called “functional MRI (fMRI).” It can even detect the activity of your brain, that is, whether different parts of the brain are working together or not.
How is CPS treated? Can it be cured?
There is currently no cure for central pain syndrome. However, there are many treatment options. If CPS is caused by an underlying medical condition, treating or curing that underlying condition may also help with CPS.
Medications
Many treatment plans start with various types of pain relievers, ranging from nonsteroidal anti-inflammatory drugs (NSAIDs ) like aspirin or ibuprofen to pain relievers that fall into the category of controlled substances like opioids .
However, many of these common painkillers, even strong opioids , are often ineffective in treating CPS. If they don't work, doctors may try one or more of the following medications (alone or in combination):
- Medications for seizures, for example gabapentin or lamotrigine .
- Serotonin-Norepinephrine Reuptake Inhibitors (SNRIs) are medications used to treat depression, such as duloxetine and venlafaxine .
- Another type of antidepressant is called tricyclic antidepressants (TCAs) , for example amitriptyline or nortriptyline .
- Medicines that come in the form of creams or patches that numb the surface of the skin, for example lidocaine .
There are also some experimental treatments. They use drugs that are popular for recreational use, but are still being researched. These may one day become part of standard treatment for CPS:
- Cannabis (medical marijuana) .
- Ketamine injection.
Non-medication methods
There are a number of non-drug approaches, some approved, some still in the research stage, that can help with CPS. Here are a few examples:
- Acupuncture .
- Deep Brain Stimulation (DBS) .
- Frequency-Specific Microcurrent (FSM) .
- Transcranial Magnetic Stimulation (TMS) .
- Transcutaneous Electrical Nerve Stimulation (TENS) .
Other treatments
Because mental health issues often co-occur with pain conditions, doctors often include mental health options in CPS treatment plans. For example, cognitive behavioral therapy (CBT) can help you learn skills to deal with the mental health issues that often accompany CPS.
Physical therapy can help you adjust to your condition. It can also improve your muscle strength, flexibility, and coordination.
The complications/side effects of treatment vary greatly depending on the treatment you receive. Your doctor can give you a good idea of what to expect.
How do I take care of myself or manage my symptoms?
CPS is not a condition that you can diagnose on your own. Therefore, it is not a good idea to try to treat it yourself. If you think you have this condition, you should see a doctor. He or she can diagnose your condition and refer you to the appropriate treatment.
How quickly I feel better after treatment varies from person to person. Ask your doctor about your treatment and recovery time. He or she can tell you exactly what to expect based on your specific condition.
What is the outlook for this situation?
Central pain syndrome can have a major impact on your quality of life, especially your ability to do the things you love.
The outlook for this condition depends largely on what the underlying cause is. When there is an underlying cause that can be treated, some of the effects of the condition are more likely to be treated or reversed.
When the underlying cause cannot be cured, the best thing to do is to treat the symptoms of CPS and prevent them from getting worse.
It is also important to recognize the condition early and begin treatment. It is also important to see a mental health professional, if needed and recommended. This is because people with this condition are at increased risk of developing anxiety and depression, as well as an increased risk of suicide.
Central pain syndrome is usually a permanent condition. In some cases, the effects can be reversed, depending on the cause and how quickly you receive treatment.
How can I prevent this from happening, or reduce the risk?
CPS develops unexpectedly and is influenced by several factors that you cannot control. Therefore, this condition cannot be prevented.
When central pain syndrome develops due to injury or damage to the brain or spinal cord, there is little you can do to reduce your risk of developing it. Wearing protective equipment and gear to prevent head and spinal cord injuries can help reduce your risk to some extent by preventing injuries that can lead to CPS.
The best way to reduce your risk of developing CPS associated with chronic pain is to seek treatment for any underlying conditions that may be causing the pain. It is also important to follow your doctor's instructions when treating those conditions. Doing both can help reduce your risk of developing chronic pain that could lead to CPS in the future.
How do I take care of myself?
If you have central pain syndrome, you should follow your doctor's instructions to care for yourself and treat your condition. The best things you can do are:
- Take your medication as prescribed.
- Avoid activities or situations that increase your pain.
- Don't neglect your mental health.
When should I see my doctor?
You should see your doctor as recommended. He or she will likely schedule follow-up appointments to see how you are doing and adjust your treatment if necessary. You should see your doctor if you notice any changes in your symptoms, especially if they change quickly or if they interfere with your normal activities and routine.
When should I go to the Emergency Treatment Unit (ETU) ?
You should seek emergency medical attention if your symptoms change over a short period of time, or if they become particularly severe. This is especially true if you have any stroke symptoms along with your CPS symptoms. Your doctor can also tell you about any signs or symptoms that are specific to you that may indicate that you need to seek emergency medical attention.
Finally, things to remember
Central pain syndrome (CPS) is a serious condition that can have a big impact on your life. It can cause you stress and pain, and it can limit your ability to live the life you want. Although central pain syndrome has a bad reputation for being difficult to treat, researchers are now developing effective treatments, medications, and approaches for it. As research continues, more options may emerge to treat this condition. This will bring hope and relief to those who suffer from this condition. So, if you have these symptoms, it is best not to panic, but to see a doctor as soon as possible.
👩🏽⚕️ Additional questions (FAQs)
💬 Is Central Pain Syndrome a disease that causes severe pain without any injury to the body?
Yes! This is an extremely painful and unimaginable disease. You don't have a cut or injury to your arm or leg. But due to some severe damage to the brain (nervous system), the brain itself falsely (erroneously) generates pain signals, which causes 'excruciating pain' to the whole body or half of the body. This is called an abnormal condition.
💬 What happens to the brain that causes it to give false pain signals like this?
This most often occurs in people who have suffered a severe stroke. It can occur suddenly after a few months when the thalamus is damaged by the stroke. It can also occur in people with multiple sclerosis (MS), Parkinson's disease, and spinal cord injuries.
💬 Wouldn't taking regular painkillers (Painkillers / Panadol) be enough for this?
Never! This is a brain signal disorder, so it will not be reduced by ordinary painkillers or strong painkillers (Opioids). To calm the nerves in the brain, you must continue to take anticonvulsants (Pregabalin/Gabapentin) or antidepressants (Amitriptyline) as prescribed by your doctor.
` Central Nerve Pain Syndrome, Central Pain Syndrome, Chronic Pain, Nervous System, Brain Disorders, Spinal Cord Disorders, Pain Management


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