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CION Cancer Clinics
Falls, bruising and blood thinners in older people | CION Cancer Clinics
A blood thinner does not make a fall more likely, but it makes bleeding after one harder to stop and easier to miss. Any head knock in an older person on a blood thinner needs a doctor the same day, even if they seem well. Small flat bruises on the arms are common. Never stop the tablet yourself after a fall: call the doctor who prescribed it. 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
- Is a fall more dangerous when your parent is on a blood thinner?
- Which bruises are expected and which need a doctor?
- What should you do right after they fall?
- What do the words on the report mean?
- What do families often get wrong about falls and blood thinners?
- How can you lower the chance of the next fall?
- Common questions about falls, bruising and blood thinners
The short answer
Is a fall more dangerous when your parent is on a blood thinner?
Yes. A blood thinner does not make a fall more likely, but it makes bleeding after a fall harder to stop and easier to miss. Any knock to the head in someone on a blood thinner needs a doctor the same day, even if they seem fine.
Why the risk is different in older people
With age, the skin gets thinner and the small blood vessels under it break more easily. The brain also shrinks a little inside the skull, which stretches the veins that cross the space around it. A bump that a younger person would shrug off can tear one of those veins. On a blood thinner, that bleed can grow slowly before anyone notices.
Which medicines count as blood thinners
Families are often surprised by how many tablets belong here. Warfarin, apixaban, rivaroxaban and dabigatran are anticoagulants, meaning they slow the clotting process itself. Aspirin and clopidogrel are antiplatelets, meaning they stop the tiny clotting cells from sticking together. Some painkillers bought over the counter add to the effect too.
What this page cannot tell you
It cannot tell you whether your parent's blood thinner is still the right choice. That weighing of stroke or clot risk against bleeding risk belongs to the doctor who prescribed it.
Never stop or skip a blood thinner on your own after a fall. For some people, stopping suddenly raises the risk of a stroke or a clot. Ask the treating doctor first.
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After a fall with a head knock: go today
If someone on a blood thinner has hit their head, take them to the nearest emergency department the same day, or call 108, even if they look well. Go at once if there is headache that keeps getting worse, vomiting, confusion, unusual sleepiness, slurred speech, weakness on one side, or bleeding that will not stop with firm pressure. Take the tablet strips with you, and say clearly which blood thinner they take.
Not sure whether this applies to you?
Ask an oncologistReading the bruise
Which bruises are expected and which need a doctor?
Bruising is common on blood thinners. What matters is where it is, how big it gets, and whether there was a knock at all.
Small flat bruises on the arms and shins
Purple patches on the backs of the hands and forearms are very common in older skin, often from a knock nobody remembers. They fade slowly.
Mention them at the next routine visit.A swelling that keeps growing
A firm, tender lump under a bruise means blood has collected in the muscle or under the skin. If it gets bigger over a few hours, or the limb turns pale or numb, see a doctor that day.
Bruises that appear with no knock
New bruises in unusual places, such as the tummy, back or chest, with no injury behind them, need a blood test soon.
Look out for these too
- Bleeding gums or nosebleeds that last
- Pink, red or dark urine
- Black, sticky stools
Any bruise or cut on the head or face
Treat these as a head injury, not a skin problem. The bruise you can see says nothing about what may be happening underneath.
In the first hour
What should you do right after they fall?
Do not rush to lift them
Let them lie still for a moment. Ask where it hurts. If they cannot move a leg, have pain in the hip or neck, or cannot get up with gentle help, call 108 rather than lifting them yourself.
Press on any bleeding
Hold a clean cloth firmly on a cut without lifting it to check. On a blood thinner it can take longer to stop. If it keeps soaking through, go to the emergency department.
Ask about the head
Did they hit their head, or could they have? If nobody saw the fall and they cannot say, assume yes. Then the same-day rule applies.
Watch them closely afterwards
Even after a normal check, stay with them overnight. A slow bleed can show itself later as confusion, drowsiness or a new headache. Write down the time of the fall for the doctor.
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At the hospital
What do the words on the report mean?
- INR
- A blood test that shows how thin the blood is on warfarin. It is not used to check the newer tablets. The right range is set for each person by their doctor, and ranges differ between laboratories.
- Haematoma
- A collection of blood that has leaked out of a vessel, under the skin, in a muscle or inside the skull.
- Subdural haemorrhage
- Bleeding in the space between the brain and its outer covering. It is the head bleed most linked with falls in older people.
- Reversal
- Medicines given in hospital to undo a blood thinner's effect quickly when there is serious bleeding. Only the hospital team decides this.
Commonly believed
What do families often get wrong about falls and blood thinners?
"She fell, so we have stopped her blood thinner to be safe."
This feels careful, but it can be the more dangerous choice. Blood thinners are given to prevent strokes and clots, and those risks return quickly when the tablet stops. Call the prescribing doctor the same day and let them decide.
"He is talking normally, so the head knock is fine."
A slow bleed inside the skull often causes no change for several hours. Looking well straight after a fall does not rule it out. That is why the same-day check matters even when nothing seems wrong.
"Once someone falls a lot, blood thinners must always stop."
Not always. For many older people the protection against stroke still outweighs the bleeding risk from falls. Doctors look at the reason for the tablet, kidney function, other medicines and how often falls happen before deciding.
"A painkiller from the chemist will help the bruise settle."
Some common painkillers, such as ibuprofen, add to the bleeding effect. Ask the pharmacist or doctor which one is safe with the blood thinner before buying anything.
At home
How can you lower the chance of the next fall?
Most falls in older people have more than one cause, so small changes add up. Start with the home, then the medicines, then the body.
Make the house easier to move around
Keep a light on at night between the bed and the bathroom. Remove loose rugs and wires from walking paths. A grab rail beside the toilet and in the bathing area helps, and so does a plastic stool for sitting while bathing.
Review every tablet together
Bring all the medicines, including ones from other doctors and the chemist, to one appointment. Sleeping tablets, some blood pressure medicines and medicines for the bladder can cause dizziness. The doctor may adjust them. Do not change them yourself.
Look after strength, eyes and feet
Gentle daily walking and leg exercises help balance. Check glasses are current, and choose closed slippers with a firm grip. If falls keep happening, ask the doctor to look for a cause such as low blood pressure on standing, or a low haemoglobin that is causing dizziness.
Questions we are asked
Common questions about falls, bruising and blood thinners
My mother fell but did not hit her head. Does she still need to be seen?
If she is sure she did not hit her head, has no new pain and can walk normally, a same-day emergency visit is often not needed. Watch for a growing swelling, a pale or numb limb, or new confusion. If nobody saw the fall, or she is unsure, treat it as a head knock and get her checked today.
Should we stop the blood thinner after a fall?
Not on your own. Stopping can raise the risk of a stroke or clot, sometimes quickly. Call the doctor who prescribed it the same day and explain what happened. If there is serious bleeding, the hospital team decides whether to pause it or reverse its effect, and they will tell you when and how to restart.
Why does my father bruise so easily on aspirin?
Aspirin stops platelets, the tiny clotting cells, from sticking together, so small bumps leak more blood under the skin. Older skin is also thinner. Small flat bruises on the arms are common. Bruises without any knock, bleeding gums or dark stools are not, and need a doctor and a blood count.
Is one blood thinner safer than another for someone who falls?
Each type has its own balance of benefits and bleeding risk, and the choice depends on the reason it was started, kidney function and other medicines. This page cannot say which suits your parent. Ask the prescribing doctor directly whether falls change the choice, and bring a list of every tablet to that appointment.
What will the emergency department do after a head knock?
They will usually examine the person, check the blood thinner and often arrange a CT scan of the head. Blood tests may include a clotting test. If the scan is clear, you may go home with written advice on what to watch for. If there is bleeding, they will explain the plan.
Can a bleed show up days after the fall?
Yes, in older people on blood thinners a slow bleed around the brain can take time to cause symptoms. Watch for a new or worsening headache, confusion, drowsiness, changes in walking or personality, or weakness on one side. Any of these after a recent fall needs the emergency department, even if an earlier scan was clear.
When is easy bruising a sign of a blood problem?
When bruises appear with no knock, spread widely, or come with nosebleeds, bleeding gums or tiny red dots on the skin. A blood count can show a low platelet count, called thrombocytopenia, or other changes. A single result is read alongside symptoms and repeat tests, and a haematologist can look for the cause.
How can CION help if we are worried about bruising?
Bring the blood reports and the full medicine list. CION's haematology team, including Dr. Basudev Pokhrel, can review unexplained bruising or low counts and work with the doctor who prescribed the blood thinner. We will not change that medicine without the prescribing doctor. For a head injury today, go to the nearest emergency department first.
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Dr. Basudev Pokhrel reviews blood counts, transfusion needs and blood disorders, and works with the CION tumour board on blood cancers.
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Sources
- NHS — Anticoagulant medicines
- NHS — Head injury and concussion
- NHS — Falls
- NHLBI — Bleeding Disorders
- NICE — Head injury: assessment and early management
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
Anticoagulation in the Very ElderlyHow doctors weigh stroke protection against bleeding riskAnaemia in Older Adults: Never Just AgeingWhen a low haemoglobin is behind dizziness and fallsMGUS and Low Counts in Older AdultsWhat low counts on a routine report can meanBlood Disorders in Older AdultsThe full guide for older patients and their families
Talk to us
Worried about bruising or a blood report?
Share the reports and the medicine list with us. Our haematology team will review them and tell you what the next step is. One helpline serves every CION centre.