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Regular preventive or on-demand treatment for haemophilia? | CION Cancer Clinics
On-demand treatment gives clotting factor only after a bleed starts. Regular preventive treatment gives it on a fixed schedule, so most bleeds never begin and the joints are protected. For severe haemophilia, a regular schedule is what most guidance recommends. For mild haemophilia, on-demand is often enough. This page explains the difference, who each suits, and what to ask your haematologist. At CION Cancer Clinics, our haematologist cares for anaemia, bleeding, clotting and inherited blood disorders, with ArogyaSri, CGHS and cashless insurance accepted.
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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 is the difference between regular and on-demand treatment?
- How do the two approaches compare day to day?
- Which approach suits which person?
- What happens if you move from on-demand to a regular schedule?
- What do families often get wrong about preventive treatment?
- What can this page not tell you, and what should you ask?
- Common questions about preventive and on-demand haemophilia treatment
The short answer
What is the difference between regular and on-demand treatment?
On-demand treatment means you take clotting factor only after a bleed has started. Regular preventive treatment means you take it on a fixed schedule, whether or not you are bleeding, so that your blood can clot well enough to stop most bleeds from happening at all.
Why the schedule matters
In haemophilia your blood is missing, or low in, one clotting protein. Factor replacement tops that protein up, but the body uses it up within a day or so. On-demand treatment brings the level up only once the damage has begun. A regular schedule keeps the level from falling too low between doses, so the joints and muscles are protected before anything goes wrong.
What your prescription may call it
On your treatment card or a discharge note, regular treatment may be written with a medical word that simply means prevention. If a word on the card is unclear, ask the nurse to explain it. "Episodic" treatment means the same thing as on-demand. Newer medicines such as emicizumab, which is injected under the skin rather than into a vein, are also given on a regular preventive schedule.
This page explains the two approaches. It does not tell you which one you should be on. Your haematologist decides that with you, and only they should change the plan.Side by side
How do the two approaches compare day to day?
Regular preventive treatment
On-demand treatment
Factor given on a set schedule, even when you feel well
Factor given only once a bleed starts or before a planned procedure
Aims to stop most bleeds before they begin
Aims to stop a bleed that has already begun
Protects joints from the slow damage of repeated bleeds
Each bleed can leave a little damage behind, which adds up
Uses more factor over a year, so supply matters
Uses less factor overall, but bleeds can mean missed school or work
Needs a regular routine of injections at home or at a centre
Needs quick access to factor the moment a bleed starts
Who it suits
Which approach suits which person?
These are general patterns, not rules. Your own plan depends on your factor level, your bleeding history and what supply you can reliably get.
Severe haemophilia
People with very low factor levels can bleed into joints with no injury at all. Haematology guidance in most countries now recommends a regular preventive schedule for them, ideally started in early childhood.
Mild haemophilia
Many people bleed mainly after an injury, surgery or dental work. On-demand treatment, planned around those events, is often enough.
It does not suit someone whose bleeds have become frequent. Tell your team if that is happening.Moderate haemophilia
This group varies the most. Some people rarely bleed. Others bleed often enough that a regular schedule protects their joints.
Your team will look at
- How often bleeds happen
- Whether one joint keeps bleeding
- Sport, school and work
People with inhibitors
If your body has made antibodies against factor, ordinary factor may stop working. Standard preventive factor does not suit you, and your haematologist will discuss other medicines instead.
Not sure whether this applies to you?
Ask an oncologistMaking the move
What happens if you move from on-demand to a regular schedule?
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A review of your bleeding history
Bring a written list of recent bleeds: which joint, what started it and how long it took to settle. A bleeding diary on your phone works well. It shows the haematologist the real picture.
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Blood tests
Your factor level is confirmed, and you are tested for inhibitors, because a regular schedule is planned differently if they are present.
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A schedule set by your team
How often you inject and how much you take is decided by the haematologist. It is based on your weight, your factor type and how quickly your body uses it. Never work this out yourself.
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Learning to inject
Many families learn to give factor into a vein at home, so a child does not have to travel for every dose. Nurses teach this step by step. A port may be suggested for small children with difficult veins.
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Follow-up
Your team checks whether bleeds have become less frequent, looks at your joints, and adjusts the plan if breakthrough bleeds keep happening.
!
On either plan, some bleeds cannot wait
A knock to the head, a severe headache, vomiting, unusual sleepiness, a bleed in the neck or throat, or sudden pain deep in the hip or belly needs same-day emergency care. Go to the nearest emergency department or call 108, and say the person has haemophilia. Take factor as your emergency plan says, but do not wait for it to work before you travel.
Commonly believed
What do families often get wrong about preventive treatment?
"He is not bleeding right now, so he does not need factor."
With a regular schedule, the whole point is to take factor while nothing is wrong. Skipping doses on good days lets the level fall, and that is when a joint bleed is most likely. Talk to your team before changing anything.
"A joint bleed that settles has done no harm."
Blood inside a joint irritates its lining even after the pain goes. Repeated bleeds into the same knee, ankle or elbow slowly wear the joint down. That hidden damage is the main reason regular treatment is recommended.
"Once a child is on regular factor, sport is off the table."
It is usually the reverse. Good preventive cover is what makes swimming, cycling and school games safer. Contact sports still need a conversation with your haematologist first.
"If on-demand has worked for years, there is no reason to review it."
Needs change as children grow, as adults take up new work, and as newer medicines become available. It is reasonable to ask for a review at any follow-up visit.
Being straight with you
What can this page not tell you, and what should you ask?
This page cannot tell you which plan is right for you or your child, or how often to inject. Those depend on tests, your bleeding pattern and your joints, which only your haematologist can put together.
Supply is part of the decision
A regular schedule only works if factor is available without gaps. In India, several state programmes supply factor free or at low cost through government haemophilia centres, and schemes such as Aarogyasri, CGHS, ECHS, EHS, PM-JAY and cashless insurance may cover parts of care. The rules change, so check the current position with your centre before you plan around it.
Questions worth taking to your appointment
Ask whether a regular schedule would protect your joints, what a breakthrough bleed looks like and what to do then, whether you have been tested for inhibitors recently, and whether a newer medicine given under the skin is an option for you. At CION, the haematology team reviews your reports and helps coordinate care with the centre that supplies your factor.
Never stop, skip or change a factor dose on your own, even if bleeds have gone quiet. Speak to your treating team first.Questions we are asked
Common questions about preventive and on-demand haemophilia treatment
Is regular preventive treatment better than on-demand?
For people with severe haemophilia, a regular schedule is what most haematology guidance recommends, because it protects the joints from repeated bleeds. For mild haemophilia, on-demand treatment is often enough. Neither is right for everyone. Your haematologist weighs your factor level, bleeding history and reliable supply before advising you.
Will my child have to take injections for life?
Haemophilia is a lifelong condition, so some form of treatment usually continues into adult life. The plan is reviewed as a child grows, and it may change. Newer medicines given under the skin need fewer injections than factor into a vein. Ask your team which options exist for your child today.
Can we give factor at home?
Many families do, once a nurse has trained them and the team is confident. Home treatment means a bleed can be treated quickly and school or work is missed less often. Keep factor stored as the label says, write down every dose and bleed, and keep your emergency plan somewhere easy to find.
What is a breakthrough bleed?
It is a bleed that happens even though you are on a regular preventive schedule. An occasional one after an injury can happen. If they keep happening, especially in the same joint, tell your haematologist. The schedule may need adjusting, or you may need testing for inhibitors.
Does regular treatment mean we will never see a bleed?
No. It lowers how often bleeds happen, but it is not a promise that none will occur. Injuries, missed doses and growth spurts can all lead to a bleed. Keep treating bleeds quickly, follow your emergency plan, and go to hospital for any head, neck or belly bleed.
We cannot always get factor. What then?
Tell your haematologist honestly about gaps in supply, because a plan that cannot be followed is not a safe plan. They may suggest a different schedule or help you connect with a government haemophilia centre. Do not stretch or ration doses on your own without speaking to the team.
Is on-demand treatment ever the safer choice?
It can be reasonable for people who rarely bleed, such as many with mild haemophilia. It is also used alongside a regular schedule to treat a bleed that breaks through. What matters is that the choice is made with your haematologist, not by default because nobody has reviewed the plan.
Does CION give factor or run a haemophilia centre?
CION's haematology team can review your reports and bleeding history, explain your options and help coordinate care with qualified haemophilia treatment centres. Ask the helpline what is available for your situation, and keep your existing treatment going while you seek an opinion.
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Sources
- NHS — Haemophilia: treatment
- National Heart, Lung, and Blood Institute — Hemophilia: treatment
- American Society of Hematology — Hemophilia
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
Factor Replacement Therapy ExplainedHow factor works and how it is givenJoint Bleeds and Long-Term Joint DamageThe damage regular treatment aims to preventInhibitors in HaemophiliaWhen factor stops working and what changesHaemophilia Schemes and Free Factor in IndiaGetting a steady factor supplyBleeding Disorders and HaemophiliaThe full guide to bleeding disorders
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