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Myelofibrosis symptoms, and how the MPN-10 form tracks them | CION Cancer Clinics
The commonest symptoms of myelofibrosis are tiredness, feeling full quickly, discomfort under the left ribs, night sweats, itching, bone pain and weight loss. The MPN-10 form asks you to rate ten of these, from none to as bad as you can imagine, and adds them into one total. Tracked over visits, it shows your haematologist whether symptoms are building or easing. Here is how to fill it in and read it. At CION Cancer Clinics, every leukaemia, MDS and MPN case is reviewed by our haematologist and discussed at a tumour board before a plan is agreed.
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Medically reviewed by Dr. Basudev PokhrelConsultant Haematologist · last reviewed September 2026, next review due September 2027
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On this page
- What are the symptoms of myelofibrosis, and what is the MPN-10 score?
- Which symptoms do people with myelofibrosis notice most?
- What are the ten questions on the MPN-10?
- How do you fill in and track the MPN-10?
- What do people often get wrong about these symptoms?
- What can the symptom score not tell you?
- Common questions about myelofibrosis symptoms
The short answer
What are the symptoms of myelofibrosis, and what is the MPN-10 score?
The most common symptoms of myelofibrosis are tiredness, feeling full quickly, discomfort under the left ribs, night sweats, itching, bone pain and weight loss. The MPN-10 is a short questionnaire that rates ten of these symptoms, so you and your haematologist can see how heavy they are and whether treatment is easing them.
Why symptoms matter so much here
In many blood conditions, the blood count tells most of the story. In myelofibrosis, how you feel is just as important. Two people with similar counts can live very different days. One may work and travel; the other may struggle to walk to the market. Your symptoms help decide when to start treatment and whether it is working.
Where the symptoms come from
Some come from the scarred marrow making too little blood, which causes tiredness and breathlessness. Some come from the swollen spleen pressing on the stomach. Others come from signals the disease releases into the whole body, causing sweats, fevers, itching and weight loss.
Who this page is for
It is for anyone with myelofibrosis, or caring for someone who has it, who has been handed the questionnaire or wants to track symptoms properly between visits. Symptoms are easy to forget or play down in a short clinic appointment, especially when you are feeling a little better that day. A written score, filled in at home, gives a truer picture of the weeks in between.
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Symptoms that cannot wait for a questionnaire
Sudden, severe pain under the left ribs, fainting, heavy bleeding, vomiting blood, black stools, or a fever with shivering while on treatment need care the same day. Go to the nearest emergency department or call 108, and say the person has myelofibrosis. Do not wait for the next clinic visit, and do not score these symptoms instead of acting on them.
Not sure whether this applies to you?
Ask an oncologistWhat people feel
Which symptoms do people with myelofibrosis notice most?
Symptoms fall into three groups. Most people have some from each, and they can change over months.
From low blood counts
A low haemoglobin leaves you tired and short of breath on effort. Low platelets can cause easy bruising or bleeding gums.
Often described as
- Tired even after rest
- Breathless on stairs
- Unexplained bruises
From a large spleen
The spleen can grow large enough to press on the stomach and other organs in the belly.
Often described as
- Full after a few mouthfuls
- A dragging ache on the left
- A swollen belly
Whole-body symptoms
These come from signals the disease releases. Doctors sometimes call them constitutional symptoms.
Often described as
- Night sweats that soak the sheets
- Itching, often after a bath
- Low fevers and bone pain
- Losing weight without trying
On the form
What are the ten questions on the MPN-10?
- Fatigue
- Your worst tiredness over the recent day.
- Early satiety
- Feeling full quickly when you eat.
- Abdominal discomfort
- Aching or pressure in the belly.
- Inactivity
- How much less active you have been.
- Concentration
- Trouble focusing, compared with before.
- Night sweats
- Sweating at night.
- Itching
- Itchy skin, anywhere on the body.
- Bone pain
- Diffuse pain in the bones, not joint or arthritis pain.
- Fever
- Raised temperature you have noticed.
- Weight loss
- Weight lost without trying over recent months.
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Using the score
How do you fill in and track the MPN-10?
Rate each symptom
Each question runs from none at all to as bad as you can imagine. Answer for yourself, even if a family member is filling in the form. Most questions ask about the past week.
Add up the total
The ten answers are added into one total. A higher total means a heavier symptom burden. There is no pass or fail mark.
Repeat at the same point
Fill it in before each clinic visit, at about the same time of day. Keep every copy in date order in one folder or on your phone, so the trend is easy to see.
Bring it to the visit
Your haematologist looks at which items have changed, not only the total. A rise in sweats and weight loss means something different from a rise in tiredness alone. Tell them about anything that affected the week, such as a fever or a family event.
Commonly believed
What do people often get wrong about these symptoms?
"The tiredness is just old age, so there is no point mentioning it."
Tiredness is one of the main symptoms of myelofibrosis and one that treatment can target. Low haemoglobin, poor sleep from sweats or low mood can all add to it. Tell your team, every time.
"Night sweats and itching are skin or weather problems."
In myelofibrosis they are often part of the disease itself. Creams alone rarely settle the itch. They are worth scoring, because they can improve with the right treatment.
"A lower score means the disease is going away."
A falling score means you feel better, which matters a great deal. It does not show what is happening in the marrow. Blood tests and examination are still needed alongside it.
"Eating less is fine because the stomach feels full anyway."
Weight loss makes tiredness and weakness worse. Small, frequent meals through the day are usually easier than three large ones. Ask for a dietitian if weight keeps falling.
Being straight with you
What can the symptom score not tell you?
The MPN-10 measures how you feel. It does not diagnose myelofibrosis, give a risk group or predict the future. Many of its symptoms, such as tiredness and weight loss, have other causes too, including thyroid problems, infections such as tuberculosis, and depression.
How your haematologist uses it
It is one input among several. It sits beside your blood counts, the size of your spleen, your gene results and your risk score. A high or rising score can be a reason to start or adjust treatment, such as a JAK inhibitor. A score that stays low can support watching closely. The decision always rests on the whole picture.
When a symptom does not fit
If a new symptom appears that the form does not ask about, such as swelling in the legs, yellowing of the eyes or new headaches, write it down anyway and mention it. The form is a guide, not a limit.
Do not start, stop or change any medicine because your score has gone up or down. Your treating team decides.Questions we are asked
Common questions about myelofibrosis symptoms
What counts as a high MPN-10 score?
There is no single cut-off that everyone uses in clinic. A higher total simply means heavier symptoms. What matters most is how your score changes over time and which items drive it. Your haematologist will compare your scores across visits rather than judge one form on its own.
Can my son or daughter fill it in for me?
They can read the questions aloud and write down the answers, which helps if reading is hard. The ratings should still be yours, because only you know how the symptom feels. If you cannot answer, tell the doctor who filled it in, so the scores are read with that in mind.
Is there a Telugu version of the questionnaire?
Ask your haematology team what they use. If only an English form is available, a family member or nurse can explain each question in Telugu. What matters is that the same person asks the questions the same way each time, so the scores stay comparable.
Why does my doctor ask about bone pain and not joint pain?
Bone pain in myelofibrosis is a deep, spread-out ache in the bones, often in the legs or back, and comes from the busy, scarred marrow. Joint pain is more often arthritis. Both are worth mentioning, but only bone pain is scored on the form.
Do symptoms always mean the disease is getting worse?
Not always. Symptoms can flare with an infection, poor sleep, stress or a change in haemoglobin, then settle. A steady rise over several visits, especially in sweats, fevers and weight loss, is more significant. Your haematologist will check your counts and spleen before drawing any conclusion.
Will treatment improve my score?
For many people, yes. JAK inhibitors often ease sweats, itching and tiredness and reduce spleen discomfort. Not everyone responds, and the benefit can fade over time. Low haemoglobin may need separate treatment. Your score is one way your team checks whether the treatment is helping you.
How often should I fill it in?
Before each clinic visit is usually enough, and more often when treatment has just started or changed if your team asks. Filling it in daily tends to track bad days rather than real trends. Keep the copies together and bring them every time.
Can these symptoms be something other than myelofibrosis?
Yes. Sweats, fevers and weight loss can come from infections such as tuberculosis, thyroid problems and other illnesses. That is why your team may order extra tests rather than put every new symptom down to myelofibrosis. Mention anything new, even if it seems unrelated.
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Sources
- Leukemia & Lymphoma Society — Myelofibrosis
- National Cancer Institute — Chronic Myeloproliferative Neoplasms Treatment (PDQ) - Patient Version
- American Society of Hematology — Blood cancers
- Blood Cancer UK — Understanding blood cancer
This page is general information, not a prescription. Do not change or stop any treatment based on what you read here. If anything is worrying you, contact your own treating team — or call our helpline and we will help you reach the right specialist.
Keep reading
Related pages
Myelofibrosis ExplainedWhat causes these symptoms in the first placeMassive Splenomegaly: Living With an Enlarged SpleenEasing fullness and left-sided painNutrition and Weight Loss in MyelofibrosisEating well when you feel full quicklyRuxolitinib in Myelofibrosis: What It Does and Does Not DoThe tablet most often used to ease symptoms
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