Brain Cancer and Pain: Understanding the Symptoms

A headache may be the symptom that leads to a brain-tumor diagnosis. But not every person with a brain tumor develops headaches, and not every headache in someone with brain cancer is caused by the tumor.

Pain can also develop because of brain-cancer treatment.

Surgery, radiation therapy, chemotherapy, corticosteroids, seizures, inflammation, nerve injury, muscle tension, and other treatment-related problems can contribute to pain during treatment and survivorship.

For that reason, one of the most important questions for a person with brain cancer who develops pain is:

What is causing the pain?

The answer matters because different causes require different treatments.

The National Cancer Institute recognizes headache and body pain among the symptoms experienced by people with brain and spine tumors. Research also suggests that symptom burden can remain substantial throughout the brain-tumor disease trajectory, making symptom management an important part of cancer care and survivorship.

I am a long-term survivor of an incurable blood cancer called multiple myeloma.

Though I have been in complete remission from my blood cancer since 1999, I have developed long-term side effects that cause joint, muscle, nerve, and bone pain and I remember the pain caused by my cancer, vividly. I spend as much time and money managing my therapy-induced pain as I do managing my health. I hope the post below helps you manage your own cancer pain.

Like most topics on PeopleBeatingCancer.org, I believe that patient education is the key to managing a problem.

Scroll down and post a question or comment if there is anything you’d like to know about cancer and pain.

Good luck,

David Emerson

Why Your Brain Cancer Pain Is Different (And How to Fix It)

Concepts Central to Managing Your Cancer

Pain for Specific Types of Cancer

What Causes Pain in People With Brain Cancer?

Brain-cancer pain can have several different causes.

1. Pain Caused by the Brain Tumor

Brain tissue itself does not contain pain-sensitive receptors in the same way that many other tissues do.

However, tumors can cause pain by affecting pain-sensitive structures around the brain.

A tumor may:

Increase pressure inside the skull
Stretch or irritate pain-sensitive structures
Cause inflammation
Produce or worsen brain edema
Compress surrounding structures
Affect nerves or blood vessels
Interfere with normal neurological function

This can contribute to headaches and other forms of discomfort.

Importantly, the presence or severity of a headache does not necessarily tell you how large a brain tumor is or how aggressively it is behaving.

Brain tumors can sometimes be present without causing headaches.

Conversely, a relatively small change in tumor location or surrounding edema can produce significant symptoms.

Read my post about brain cancer to gain a general understanding about brain cancer.

Brain Cancer and Headaches

Headache is one of the symptoms that understandably worries brain-cancer patients and survivors.

Brain-tumor-associated headaches can be:

Persistent
Progressive
Different from a person’s previous headaches
Associated with nausea or vomiting
Associated with neurological symptoms
Worse with certain activities or positions in some patients

However, headaches are extremely common and have many causes unrelated to cancer.

A headache in someone with a history of brain cancer therefore should not automatically be interpreted as evidence that the cancer has returned.

At the same time, a new, persistent, changing, or progressively worsening headache deserves medical evaluation.

Patients should tell their oncology or neurology team about changes in headache pattern rather than attempting to determine the cause themselves.

Brain Edema and Pain

Brain tumors can cause swelling around the tumor, known as peritumoral edema.

Edema can contribute to neurological symptoms and increased pressure within the skull.

Corticosteroids such as dexamethasone are commonly used when clinically appropriate to reduce tumor-associated brain edema.

However, corticosteroids can also produce significant side effects, including:

Insomnia
Increased appetite
Mood changes
Muscle weakness
Elevated blood glucose
Fluid retention
Bone loss with longer-term exposure

This creates an important distinction for patients:

A medication used to control one cancer-related problem can sometimes create another survivorship problem.

Patients should not change or discontinue corticosteroids without discussing the decision with their treating physician.

Pain After Brain Cancer Surgery

Surgery is frequently an important part of brain-tumor treatment.

Pain after surgery can come from:

The surgical incision
Scalp and soft-tissue injury
Muscle tension
Inflammation
Nerve irritation
Positioning during surgery
Head and neck muscle problems
Headaches associated with the surgical procedure

Postoperative pain generally improves as healing occurs.

Persistent or worsening pain, however, deserves evaluation.

A patient should not assume that prolonged or increasingly severe pain is simply an unavoidable consequence of having had brain surgery.

The cause should be investigated.

For a broader discussion of brain-cancer surgery, see:

Surgery for Brain Cancer: What Patients Need to Know

Radiation and Brain-Cancer Pain

Radiation therapy can be an important treatment for primary brain tumors and brain metastases.

Radiation can also produce side effects that affect how a patient feels.

Depending on the treatment area, dose, timing, and individual circumstances, patients may experience:

Headache
Fatigue
Scalp irritation
Inflammation
Neurological symptoms
Cognitive changes

Radiation-related symptoms can occur during treatment or later.

New or worsening neurological symptoms after radiation should be reported to the treatment team.

The important question is not simply:

“Does radiation cause pain?”

Instead, ask:

“What is causing my pain, and could it be related to my cancer or its treatment?”

Whole Brain Radiation can cause significant side effects

Can Brain-Cancer Treatment Cause Nerve Pain?

Yes.

Cancer treatment can damage nerves.

Chemotherapy-induced peripheral neuropathy (CIPN), for example, can produce:

Burning
Tingling
Numbness
Shooting pain
Electrical sensations
Increased sensitivity to touch
Weakness
Balance problems

CIPN is particularly associated with certain chemotherapy drugs.

Not every brain-cancer patient receiving chemotherapy will develop neuropathy, but patients should report new neurological symptoms promptly.

Neuropathy is particularly important in survivorship because nerve symptoms can continue after chemotherapy has ended.

A person may therefore be free of detectable cancer while still living with treatment-related nerve pain.

That distinction is central to understanding cancer survivorship.

Brain Cancer Pain During Survivorship

Surviving brain cancer does not necessarily mean that every symptom disappears when treatment ends.

Some survivors experience:

Chronic headaches
Neuropathic symptoms
Muscle weakness
Balance problems
Cognitive changes
Fatigue
Sleep problems
Anxiety
Depression
Treatment-related pain

These problems can overlap.

For example:

Pain → poor sleep → fatigue → less physical activity → muscle weakness → worse function → more pain

Breaking that cycle may require more than medication.

A survivorship plan may include:

Appropriate physical activity
Physical therapy
Occupational therapy
Sleep management
Psychological support
Cognitive rehabilitation
Medication review
Neurological evaluation
Pain-management consultation
Palliative care when appropriate

Brain Cancer Pain and Palliative Care

Palliative care is sometimes misunderstood as meaning that cancer treatment has stopped.

It does not.

Palliative care can be provided alongside active cancer treatment.

For people with brain tumors, palliative and supportive care can address symptoms such as:

Pain
Headaches
Fatigue
Seizures
Cognitive problems
Mood changes
Sleep problems
Nausea
Functional decline

The objective is to improve quality of life while helping patients and families navigate difficult medical decisions.

For patients with advanced brain cancer, early integration of palliative care can also help with advance-care planning and communication about goals of treatment.

How Is Brain-Cancer Pain Treated?

Treatment depends on the cause.

There is no single “brain cancer pain treatment.”

Treat the underlying problem

If pain is related to tumor growth, edema, or another cancer-related complication, treating the underlying problem may reduce the pain.

Depending on the situation, treatment may include:

Surgery
Radiation
Systemic cancer therapy
Corticosteroids for appropriate indications
Treatment of seizures
Treatment of infection or inflammation
Other supportive therapies

Treat the pain itself

Pain treatment may include:

Acetaminophen or other appropriate analgesics
Anti-inflammatory medications when appropriate
Neuropathic-pain medications
Opioids for selected patients with moderate-to-severe cancer pain
Physical therapy
Occupational therapy
Massage
Acupuncture
Relaxation techniques
Guided imagery
Psychological interventions
Palliative-care services

The safest treatment depends on the individual’s diagnosis, medications, kidney and liver function, neurological status, and overall treatment plan.

What About Cannabis and Brain-Cancer Pain?

Cannabis and cannabinoids have attracted considerable interest among cancer patients.

Patients sometimes use cannabis for:

Pain
Sleep
Anxiety
Appetite
Nausea

However, biological plausibility is not the same as proof of clinical effectiveness.

Evidence for cannabinoids in cancer-related pain remains mixed, and patients should not substitute cannabis for proven cancer treatment or established pain-management strategies.

Cannabinoids can also cause side effects and interact with medications.

This is particularly important for brain-cancer patients because medications or substances that affect cognition, alertness, balance, or coordination may have greater consequences in someone already experiencing neurological symptoms.

Patients considering cannabis or cannabinoid products should discuss them with their oncology team and pharmacist.

To learn more about Cannabinoids and Cannabis for Cancer

Can Complementary Therapies Help?

Some complementary approaches may help selected cancer patients manage symptoms.

Examples include:

Acupuncture
Massage
Mindfulness
Relaxation techniques
Yoga adapted to the patient’s abilities
Exercise
Physical therapy
Guided imagery
Cognitive-behavioral approaches

The evidence is not equally strong for every therapy.

That distinction matters.

At PeopleBeatingCancer, I believe complementary therapies should be evaluated according to the quality of the evidence supporting them—not simply because they are described as “natural.”

A complementary therapy should complement appropriate cancer treatment rather than replace it.

The Most Common Complementary Cancer Therapies Used By Cancer Patients

Pain, Sleep and Brain Cancer

Pain and sleep problems frequently reinforce each other.

Pain can make it difficult to sleep.

Poor sleep can make pain harder to tolerate.

Brain-cancer patients may have additional reasons for disrupted sleep, including:

Corticosteroids
Anxiety
Fatigue
Neurological symptoms
Medication side effects
Changes in daily activity
Hospitalization

Addressing sleep may therefore be an important part of pain management.

Patients experiencing persistent insomnia should discuss it with their cancer team rather than simply accepting poor sleep as another unavoidable consequence of cancer.

Tips and Tricks for Sleep and Insomnia

When Should a Brain-Cancer Patient Report Pain?

Patients should contact their healthcare team when pain is:

New
Persistent
Increasing
Different from previous pain
Severe
Interfering with sleep
Interfering with walking or daily activities
Associated with weakness
Associated with numbness
Associated with changes in vision
Associated with seizures
Associated with confusion or cognitive changes
Associated with repeated vomiting

Some neurological symptoms require urgent medical attention.

Sudden severe headache, sudden weakness or numbness, new difficulty speaking, a seizure, significant confusion, loss of consciousness, or other sudden neurological changes should be treated as potentially urgent medical problems.

Patients should know in advance which symptoms their cancer team considers an emergency.

Questions to Ask Your Brain-Cancer Team About Pain

Patients may want to ask:

What do you think is causing my pain?
Could this pain be related to my tumor?
Could brain edema be contributing to my symptoms?
Could my treatment be causing the pain?
Do I need imaging or another neurological evaluation?
Could my medications be contributing to the pain?
Would a pain specialist help?
Would physical therapy or occupational therapy help?
Would palliative care be appropriate?
Are there complementary therapies that are safe for me?
Could cannabis or supplements interact with my medications?
What symptoms should cause me to call you immediately?

Brain Cancer Pain: A Patient’s Perspective

One of the most important lessons for cancer patients and survivors is that pain is a symptom—not a diagnosis.

The same symptom can have very different causes.
A headache could be related to the tumor.
It could be related to treatment.
It could be related to medication.
It could be a primary headache disorder.
Or it could have nothing to do with cancer.

The same principle applies to pain elsewhere in the body.

The goal should therefore be to identify the cause before simply escalating pain medication.

That approach becomes particularly important for brain-cancer survivors because neurological symptoms can affect mobility, cognition, independence, sleep, and quality of life.

PeopleBeatingCancer Evidence Rating

Approach	Evidence/clinical support	PBC perspective
Treating the underlying brain tumor	★★★★★	Fundamental when tumor-related symptoms are present
Corticosteroids for clinically significant brain edema	★★★★★	Established therapy when appropriately indicated
Radiation for selected brain tumors/metastases	★★★★★	Established cancer treatment and can sometimes reduce tumor-related symptoms
Conventional analgesics	★★★★★	Important component of individualized pain management
Palliative care	★★★★★	Should be considered symptom management—not “giving up”
Physical/occupational therapy	★★★★☆	Particularly valuable for function, mobility and independence
Exercise/rehabilitation	★★★★☆	Promising and increasingly supported, but must be individualized
Acupuncture/massage/mindfulness	★★★☆☆	Potentially useful complementary approaches; evidence varies
Cannabis/cannabinoids for cancer pain	★★☆☆☆	Interesting but insufficient evidence to replace established pain treatment
Supplements marketed specifically for brain-cancer pain	★☆☆☆☆–★★☆☆☆	Evidence is generally limited; interactions deserve attention

The Bottom Line

Brain cancer and pain are not synonymous.

A person with brain cancer can experience pain because of the tumor, brain edema, surgery, radiation, chemotherapy, medications, nerve damage, musculoskeletal problems, or an unrelated condition.

The first step is therefore to determine the likely cause.

For patients and survivors, persistent or changing pain should not simply be accepted as something they have to live with.

Pain deserves to be evaluated.

Treatment may involve cancer-directed therapy, medications, rehabilitation, physical therapy, palliative care, psychological support, or carefully selected complementary therapies.

And for brain-cancer survivors, pain management should be viewed as part of survivorship—not as an afterthought.

**The goal is not simply to survive brain cancer.

The goal is to live as well as possible during treatment and after treatment ends.**

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Brain Cancer and Pain: What Patients and Survivors Need to Know