Biopsy

Overview

A biopsy is a medical procedure in which a small sample of tissue or cells is taken from an area of your body. The sample is looked at under a microscope to check for signs of disease, such as cancer, infection, or inflammation.

Yes. Biopsies are very common – thousands are carried out every week across the UK and around the world.

Anyone can need a biopsy, from children to older adults. It is usually suggested when a doctor finds a lump, a change on a scan, or another area that needs a clearer answer.

Symptoms

Common symptoms

• A lump or swelling that has appeared, grown, or feels different than before
• An abnormal area seen on a scan, such as an X-ray, ultrasound, or CT scan
• A skin change, like a mole that is changing, bleeding, or itching

Symptoms in children

• An unexplained lump or mass that parents or a doctor can feel
• A persistent bone pain or tenderness
• A skin lesion that looks unusual

Symptoms in older adults

• Unexplained weight loss or tiredness
• A new lump or persistent change in bowel or bladder habits
• A non-healing sore or mouth ulcer

Causes

Main causes

• To investigate why there is an abnormal lump, mass, or growth
• To determine whether an imaging finding is benign or malignant
• To diagnose conditions such as infection, autoimmune disease, or chronic inflammation

Risk factors

• Being over 50, when the risk of many diseases, including cancer, increases
• A family history of certain cancers can make a doctor more likely to recommend a biopsy when an abnormality is found
• Lifestyle factors such as smoking, heavy alcohol use, or prolonged sun exposure

When to see a doctor

See a doctor urgently if:

• You find a new lump or swelling that is growing quickly
• A mole changes shape, colour, or size, or starts to bleed
• You have symptoms such as unexplained fever, night sweats, or heavy bleeding

Book a routine appointment if:

• You notice a lump or symptom that lasts for more than two weeks
• You have concerns about a family history, and you want to talk about your risk
• You haven't had a regular check-up in a while and have general questions

Diagnosis

A biopsy can be performed in several ways. Most often, a thin needle is guided into the area while you are awake, using local anaesthetic to numb the skin. Sometimes, a small cut is made (surgical biopsy) to remove a larger sample. The sample is then sent to a laboratory for analysis.

Tests that may be done

• Needle biopsy – a thin hollow needle is used to take a small sample of tissue or fluid
• Endoscopic biopsy – a flexible tube with a camera is passed through a natural opening, such as the mouth or anus, to reach the affected site
• Surgical biopsy – a minor operation is used to remove part or all of an abnormal area

What to expect at your appointment

Before the procedure, your doctor will explain which area will be biopsied and how. During the procedure, you will be lying or sitting comfortably. The doctor will clean the skin and may inject a local anaesthetic so you do not feel pain. The biopsy itself often takes only a few minutes. Afterwards, a small dressing is placed over the site. You can usually go home the same day.

Treatment

A biopsy is not a treatment, but it is a vital step in deciding what treatment you may need. Once the results come back, your doctor will talk to you about what they mean and, if needed, the next steps in your care.

Self-care at home

• Keep the biopsy site clean and dry for the first 24 to 48 hours
• Ask your healthcare team if you can shower, swim, or exercise before the site heals
• Use a simple over-the-counter painkiller only if your doctor or pharmacist says it is safe

Medical treatments

If the biopsy confirms a health condition, treatment will depend on the diagnosis. It could include medicines, antibiotics, hormone therapy, chemotherapy, or other approaches. Your healthcare team will explain exactly what is recommended, what the benefits are, and what to expect. You should never start or stop any treatment without talking to your doctor.

When is surgery considered?

You may need surgery if the biopsy shows a tumour that should be removed, or if a larger tissue sample is needed. In many cases, surgery is not needed right away, and your doctor will discuss all your options.

Living with this condition

After a biopsy, you can usually return to your normal activities within a day or two. You may feel a little sore, bruised, or tired. Follow your doctor's advice about your biopsy site and any restrictions.

Lifestyle tips

• Avoid heavy lifting or strenuous exercise for a few days unless your doctor says it's fine
• Try to keep a calm routine, eat well, and get enough rest while you recover
• If you smoke, reducing or stopping can improve your body's ability to heal

Diet and exercise

You don't need a special diet after a biopsy, but eating a balanced diet and staying well-hydrated can help your body recover and keep your energy up. Light walking is usually fine, but check with your team before doing anything demanding.

Mental health and emotional wellbeing

Waiting for biopsy results can feel anxious and stressful. It's very normal to worry. Try to talk about your feelings with someone you trust, and remember that most findings are not cancer. If you feel overwhelmed, ask your doctor about counselling or support services.

Prevention

A biopsy itself cannot be prevented – it is an important diagnostic tool that helps keep you healthy. Many conditions that require a biopsy can be prevented or caught early by staying healthy and attending routine check-ups.

Vaccines

Some vaccines, like the HPV vaccine and hepatitis B vaccine, can reduce the risk of cancers that might later need a biopsy. Ask your doctor whether any vaccinations are recommended for you.

Screening programmes

Screening tests – such as cervical screening, breast screening, and bowel screening – can find abnormalities early, sometimes before they cause symptoms. If a screening test is positive, a biopsy may be the next step to confirm what it means.

Complications

If left untreated

• If a serious condition, such as cancer, is not treated promptly, it may grow or spread to other parts of the body
• If an infection is left untreated, it could become more widespread and lead to a more serious illness
• Waiting when you have worrying symptoms can delay a diagnosis and make treatments less effective

Long-term outlook

A biopsy is a safe, well-tolerated procedure. Most people have no complications and only a small bruise. If a condition is found, the outlook is usually much better when it is diagnosed early. Modern medicine offers many effective ways to treat a wide range of conditions, and your healthcare team will guide you with honesty and compassion.

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