At a glance
Bone marrow aspiration and biopsy is a diagnostic procedure in which a doctor collects a small sample of the soft, spongy tissue inside your bones to examine the blood-producing cells under a microscope. The two parts are usually done together: aspiration draws out liquid marrow with a needle, while the biopsy removes a tiny core of solid bone and marrow tissue.
Your bone marrow is the factory where red blood cells, white blood cells, and platelets are made. When something goes wrong with blood cell production, the problem often shows up in the marrow before it fully appears in a standard blood test. Examining marrow cells directly gives haematologists (blood disease specialists) information they cannot get any other way.
Medical Condition
Doctors order this procedure when blood test results are abnormal and they need to understand why the bone marrow is producing too many, too few, or abnormal cells. It is also used to monitor a known blood condition after treatment has started.
- Leukaemia (blood cancer where abnormal white blood cells multiply out of control)
- Lymphoma (cancer of the lymphatic system) that may have spread to the bone marrow
- Multiple myeloma (a cancer of plasma cells inside the marrow)
- Unexplained anaemia (low red blood cell count) that does not respond to standard treatment
- Unexplained thrombocytopenia (abnormally low platelet count) or thrombocytosis (abnormally high platelet count)
- Myelodysplastic syndrome (MDS), a group of conditions where the marrow makes faulty blood cells
- Aplastic anaemia, where the marrow stops producing enough blood cells
- Suspected metastasis (spread) of a solid tumour into the bone marrow
- Fever of unknown origin or unexplained infections in the bone marrow
- Staging or monitoring of a known haematological (blood-related) disorder after chemotherapy or a bone marrow transplant
The procedure is generally not done when the patient has a severe bleeding disorder and that disorder cannot be corrected beforehand. Doctors weigh the risk of bleeding at the puncture site against the benefit of the information gained. The site chosen may also be changed if there is a skin infection or radiation damage over the usual sampling area.
- Uncorrectable severe coagulopathy (inability of the blood to clot properly)
- Active skin infection or open wound over the intended biopsy site
- Severe osteoporosis (brittle bones) may make the standard posterior iliac crest site technically difficult, though it rarely rules out the procedure entirely
Risks & Complications
Bone marrow aspiration and biopsy is a low-risk diagnostic procedure, and serious complications are uncommon. The risks listed below are recognised, though most patients experience only brief discomfort and mild soreness at the site.
- Pain or pressure during and shortly after the procedure, particularly during the aspiration (liquid withdrawal) step
- Bruising and tenderness at the puncture site lasting a few days
- Minor bleeding at the biopsy site, which usually stops with simple pressure
- Infection at the puncture site, recognisable by increasing redness, warmth, or discharge in the days after the procedure
- Prolonged bleeding in patients who have very low platelet counts or are taking blood thinners
- Rarely, a small haematoma (a pocket of blood under the skin) that resolves on its own
- Very rarely, injury to nearby structures such as nerves or, when the sternum (breastbone) is used as the sampling site, the heart or large blood vessels beneath it (this is why most centres now prefer the hip bone)
Preparation & Procedure
Most patients do not need to fast for this procedure unless they will receive sedation (medication to keep them calm or drowsy), in which case the team will ask them to stop eating and drinking for a set number of hours beforehand. Your care team will confirm the specific instruction for you based on the type of anaesthesia planned.
Blood thinners, antiplatelet drugs (medicines that reduce clotting), and certain herbal supplements may need to be paused in the days before the procedure, but only on the advice of the treating doctor. Never adjust your medication without that guidance. Smoking and alcohol are generally discouraged in the days leading up to any procedure, as they can affect how the body heals.
The doctor will usually run or review recent blood tests, including a full blood count (a test measuring the number and type of blood cells) and a clotting screen (tests that check how well the blood clots), before proceeding. Imaging such as an X-ray or CT scan of the bones may already have been done as part of the initial workup.
The procedure itself usually follows these steps, though the exact sequence can vary between hospitals:
- You lie on your side or face down on the procedure table, usually with the hip region exposed. Less commonly, you lie on your back if the breastbone is used.
- The skin over the chosen site, most often the posterior iliac crest (the back of the hip bone), is cleaned with antiseptic solution.
- A local anaesthetic (numbing injection) is given into the skin and down to the surface of the bone. This injection itself causes a brief stinging sensation.
- Once the area is numb, the doctor inserts a hollow needle through the skin and into the bone. You may feel firm pressure and a brief sharp pain when the needle enters the bone.
- For the aspiration, a syringe is attached and a small amount of liquid marrow is drawn out. Many patients feel a sharp pulling sensation lasting a few seconds at this moment.
- For the biopsy, a slightly wider needle is used to remove a small solid core of bone and marrow tissue, usually about one to two centimetres long.
- The needles are removed, and firm pressure is applied to the site to stop bleeding. A dressing is placed over the wound.
- The whole procedure typically takes between fifteen and thirty minutes, though this varies with the complexity of the case and whether sedation is used.
Aftercare
Recovery from bone marrow aspiration and biopsy is usually quick. Most patients are observed for a short period in the clinic or day-procedure unit before going home on the same day, assuming no sedation-related concerns. Soreness at the biopsy site is normal and typically settles within a few days.
- Keep the dressing clean and dry for at least 24 hours, or as long as the care team advises.
- Mild pain at the site can usually be managed with over-the-counter pain relief as directed by your doctor. Avoid aspirin-containing products unless your doctor has specifically approved them.
- Avoid soaking the area in water, such as swimming or baths, until the site has fully healed, usually a few days.
- Strenuous physical activity is generally avoided for one to two days to reduce the risk of bleeding at the site.
- Watch for warning signs that need prompt medical attention: increasing pain, redness, swelling, warmth or discharge at the puncture site, fever, or feeling faint.
- If sedation was used, you will need someone to drive you home and should not operate machinery or sign legal documents for the rest of that day.
- Results from the laboratory analysis of the marrow sample typically take several days to one to two weeks, depending on the tests ordered. Your haematologist will arrange a follow-up appointment to discuss findings and next steps.
- Further procedures, such as additional blood tests, imaging, or the start of treatment, will be guided entirely by what the marrow sample reveals.
Cost & What Determines It
The total cost of bone marrow aspiration and biopsy varies widely depending on where it is performed, the reason it is ordered, and which laboratory analyses are requested alongside it. A straightforward diagnostic aspiration carries a different price tag from a case that requires multiple special stains, flow cytometry (a technique that identifies and counts specific cell types by their surface markers), chromosomal analysis, or molecular genetic testing.
- Complexity of the underlying condition: more suspected diagnoses mean more laboratory panels run on the same sample, each adding cost
- Hospital class and country: a university teaching hospital, a private specialist centre, and a community hospital in different countries will each price this procedure differently
- Type of anaesthesia used: local anaesthesia alone is less costly than intravenous sedation, which adds anaesthesiologist fees and recovery room time
- Specialist fees: the haematologist performing the procedure and the haematopathologist (a doctor who reads the marrow samples under a microscope) each charge separately
- Scope of laboratory testing: standard morphology (looking at cell shapes) is the base cost; flow cytometry, cytogenetics (chromosome analysis), FISH (fluorescence in situ hybridisation, a technique to detect chromosome changes), and molecular tests each add to the total
- Additional imaging done before or after the procedure, such as a CT scan or MRI to locate an appropriate biopsy site
- Inpatient versus outpatient setting: if the procedure is done during a hospital admission for another reason, the costs are bundled differently
A hospital package for this procedure usually covers the procedure room fee, standard nursing care, the biopsy needles and consumables, and basic laboratory processing. What is often billed separately includes advanced molecular or genetic tests, the haematopathologist's reading fee, sedation if chosen, any imaging done on the same day, and any additional consultations triggered by the results.
BPJS Kesehatan and most Indonesian private insurance policies do not cover medical procedures performed abroad, so patients who travel for this test usually pay entirely out of pocket or rely on international private health insurance with overseas coverage. Before making any travel arrangements, ask the destination hospital for a written itemised cost estimate. This should list the procedure fee, the specific laboratory tests planned, and any consultation fees. An estimate in hand before you travel is the most reliable way to avoid unexpected charges when the final bill arrives.
Frequently Asked Questions
Does bone marrow aspiration and biopsy hurt?
Most patients feel pressure and a brief sharp ache during the procedure, rather than severe pain. A local anaesthetic (numbing medicine injected into the skin and tissue above the bone) is used first, which reduces but does not always eliminate discomfort. The most commonly reported sensation is a deep pulling feeling during the aspiration, which lasts only a few seconds.
How do I prepare for a bone marrow aspiration and biopsy?
Your doctor will usually ask you to avoid blood-thinning medicines for a set number of days before the procedure, and you may be asked not to eat or drink for a few hours beforehand if sedation is planned. Tell your care team about all medicines, supplements, and any known allergies before the day. Wearing loose, comfortable clothing makes it easier to access the hip area, which is the most common biopsy site.
How long does bone marrow aspiration and biopsy take?
The procedure itself usually takes between 20 and 45 minutes from start to finish, including preparation and dressing the site afterwards. The actual sampling of marrow lasts only a few minutes. Most patients rest briefly in the clinic before going home the same day.
How much does bone marrow aspiration and biopsy cost?
The cost varies depending on the hospital class, whether sedation is used, and the laboratory tests ordered to analyse the sample. Specialist haematology interpretation fees and the extent of testing requested can also affect the total. Requesting a written estimate directly from the hospital is the most reliable way to know what you will actually pay.
This page is general information, not a substitute for medical advice. Every case is different. Your doctor decides what is right for you.
