Introduction

Bone cancer is a rare but serious condition that begins in the bones or spreads from another part of the body. It can develop in any bone, but it most often affects the long bones in the arms and legs.

Understanding what bone cancer is, its early signs and symptoms, and available treatments helps patients and families make informed decisions about care and recovery.

Signs & Symptoms

Bone cancer happens when abnormal cells in the bone grow uncontrollably, forming a tumour. These tumours can be benign (non-cancerous) or malignant (cancerous).

Malignant bone tumours can destroy healthy bone tissue and spread (metastasise) to other parts of the body, such as the lungs or other bones. Sometimes, cancers that start elsewhere — such as the breast, prostate, or lung — spread to the bones. This is known as cancer spread to bones, or secondary bone cancer.

Early detection begins with recognising the signs of bone cancer. These symptoms can vary based on where the tumour is located and how advanced it is.

Common Bone Cancer Symptoms:

  • Persistent or dull bone pain that worsens at night or during activity
  • Swelling or tenderness near the affected bone
  • Unexplained fractures or weakening of bones
  • Fatigue or unintended weight loss
  • Reduced movement in nearby joints

The symptoms of bone cancer can resemble other conditions like arthritis or injuries, which is why imaging and tests are essential for diagnosis.

Causes & Risk Factors

The reason for bone cancer is not fully understood, but researchers have identified several risk factors that may contribute to its development.

Possible Causes and Risks:

  • Genetic factors: Inherited conditions like Li-Fraumeni syndrome or retinoblastoma increase risk
  • Previous radiation therapy: Exposure to high radiation doses can trigger mutations in bone cells
  • Bone disorders: Diseases such as Paget’s disease may raise the risk in older adults
  • Metastatic cancer: Cancers such as breast cancer that have spread to the bones are more common than primary bone cancer

In most cases, bone cancer does not have a clear cause — it occurs when normal bone cells mutate and multiply uncontrollably.

Diagnosis

A prompt and accurate bone cancer diagnosis is crucial to ensure the best treatment outcome. If signs of bone cancer are present — such as persistent pain, swelling or unexplained fractures — your specialist will perform several targeted tests to confirm whether cancer is present, determine the type of bone cancer and identify its stage.

Diagnostic tests include:

  • X-rays: Usually the first imaging test performed. X-rays can reveal abnormal bone growths, fractures or holes in the bone (known as lytic lesions) that suggest a tumour.
  • MRI or CT Scans: These provide detailed images of bones and surrounding soft tissue.
    An MRI scan helps determine how far the tumour extends into nearby muscles, nerves, or joints, while a CT scan checks whether the cancer has spread to the lungs or other bones.
  • Bone Scan: This test uses a small amount of radioactive dye to highlight areas of active bone cell growth. Abnormal spots, known as “hot spots,” can indicate cancer activity or bone metastasis. Bone scans are particularly useful in assessing whether cancer has spread to multiple areas of the skeleton.
  • PET-CT Scan: Sometimes ordered to identify cancer spread to bones from another organ or to evaluate the effectiveness of ongoing treatment. It combines metabolic and structural imaging for a more complete picture.
  • Biopsy: The most important step in confirming a bone cancer diagnosis. A biopsy involves removing a small tissue sample for laboratory analysis to determine whether it is benign (non-cancerous) or malignant (cancerous). The biopsy also identifies the specific type of bone cancer and its aggressiveness, which is critical for deciding on surgery, chemotherapy or other treatments.

Once bone cancer is confirmed, your specialist will determine the stage of bone cancer, which describes how far the cancer has spread. This information forms the basis of your treatment plan, helping to balance tumour removal, limb preservation and long-term quality of life.

Types of Bone Cancer

There are several kinds of bone cancer, each with distinct features, affected age groups, and treatment approaches. Knowing which type you have helps your specialist choose the most effective treatment and predict the expected outcome.

1. Osteosarcoma

  • The most common type of primary bone cancer, usually seen in teenagers and young adults
  • Often develops in long bones such as the femur (thigh bone), tibia (shin bone) or humerus (upper arm bone) — particularly near growing ends of bones
  • It tends to grow quickly and may spread to the lungs or other bones if untreated
  • Treatment typically includes a combination of surgery and chemotherapy

2. Chondrosarcoma

  • Arises from cartilage-producing cells in the bone
  • More common in middle-aged and older adults
  • Often occurs in the pelvis, shoulder, ribs or upper arms.
  • Unlike osteosarcoma, chondrosarcoma usually grows slowly and may not respond well to chemotherapy or radiation, making surgery the main treatment option

3. Ewing Sarcoma

  • Typically affects children, teenagers and young adults under 25 years old
  • Commonly found in the pelvis, ribs or long bones
  • Known for its rapid growth and tendency to spread to the lungs and other bones
  • Treatment usually combines chemotherapy, radiation therapy and surgery to improve survival rates

4. Fibrosarcoma and Malignant Fibrous Histiocytoma (MFH)

  • Rare types of bone cancer that arise from fibrous tissue within the bone.
  • More commonly seen in adults over 40 years old.
  • These tumours can appear in the legs, arms or jaw and are typically treated with surgery and sometimes chemotherapy

5. Secondary Bone Cancer (Metastatic Bone Cancer)

  • Refers to cancer spread to bones from another organ, such as breast cancer that has spread to bones, prostate cancer or lung cancer.
  • Secondary cancers are more common than primary bone cancers
  • Treatment focuses on controlling the primary cancer, reducing bone pain and preventing fractures or spinal compression
  • Therapies may include targeted medications, bisphosphonates and radiation to strengthen affected areas and improve comfort

Each type of bone cancer has a distinct growth pattern, level of aggressiveness and response to treatment. For example:

  • Osteosarcoma and Ewing sarcoma tend to spread early, requiring combined therapies
  • Chondrosarcoma grows slowly and often needs precise surgical removal
  • Secondary bone cancer requires management of the underlying cancer while maintaining bone health

Understanding which type you have allows your specialist to design a treatment plan tailored to your condition and long-term goals — whether that means cure, control or improving daily function.

Bone Cancer Staging & Survival Rates

Staging helps determine how far the disease has progressed by assessing tumour size, number of lesions and potential spread to other parts of the body. Accurate staging guides treatment planning and helps predict outcomes.

  • Stage 1: Cancer is localised within a single bone and has not spread to surrounding tissues. Tumour cells appear less aggressive under a microscope. 
  • Stage 2: Cancer remains within the bone but is more aggressive in nature. While it has not yet spread, the risk of recurrence is higher. 
  • Stage 3: Multiple tumours are present within the same bone, indicating more advanced local disease.
  • Stage 4: Cancer has metastasised (spread) to distant organs, most commonly the lungs or other bones.

The bone cancer survival rate depends on early detection, tumour type and response to treatment.

  • Stages 1–2 (Early-Stage Bone Cancer): Survival rates are significantly higher when bone cancer is detected early. With timely surgery and chemotherapy, many patients achieve long-term remission and maintain mobility and quality of life.
  • Stages 3–4 (Advanced or Metastatic Bone Cancer): These stages are more complex but can often be managed with advanced therapies.
    • Stage 3 bone cancer may respond well to combined treatment.
    • Stage 4 bone cancer focuses on controlling symptoms and slowing disease progression through targeted or palliative therapies.

Discussing your individual survival rate with a specialist gives the most accurate picture of your condition.

Treatments

Treatment for bone cancer aims to remove or destroy cancer cells while preserving as much bone and function as possible.

Common Bone Cancer Treatments:

  • Surgery: Removes the tumour and some surrounding tissue
  • Chemotherapy: Destroys cancer cells or prevents them from spreading
  • Radiation therapy: Used before surgery to shrink tumours or after to kill remaining cancer cells
  • Targeted therapy: Focuses on specific genetic changes in cancer cells
  • Palliative treatment: Controls pain and improves quality of life for advanced stages

For secondary bone cancer, treatment also addresses the original cancer site — for instance, managing breast cancer that has spread to bones with both systemic and bone-strengthening medications.

Ready to learn what might help you? Learn more about Bone Cancer Treatments on this treatment page.

Complications

Untreated or advanced bone cancer can lead to several complications:

  • Fractures due to weakened bone structure
  • Chronic pain and reduced mobility
  • Spread to other organs (metastasis)
  • Side effects from chemotherapy or surgery (e.g. fatigue, infection)
  • Nerve compression or spinal instability if cancer spreads to the spine

Prevention

While bone cancer cannot be completely prevented, certain steps may lower risk and support overall bone health.

  • Manage hereditary risks early – Individuals with inherited conditions (e.g., Li-Fraumeni syndrome, hereditary retinoblastoma) should undergo regular screening and genetic counselling to detect changes early.
  • Protect bones from radiation exposure – Limit unnecessary radiation, especially in childhood, and ensure medical imaging is used appropriately based on specialist recommendations.
  • Support bone strength through nutrition – Adequate calcium and Vitamin D intake helps maintain healthy bones and reduces long-term structural weakening.
  • Avoid tobacco and limit alcohol intake – Smoking and heavy alcohol use are associated with higher cancer risks and poorer overall bone health.
  • Maintain a healthy weight and active lifestyle – Weight-bearing exercise and balanced nutrition promote stronger bones and better immune system resilience.
  • Monitor benign bone conditions regularly – Conditions such as Paget’s disease or previously treated bone tumours should be followed up routinely, as they may increase the risk of malignant transformation.

Living with Bone Cancer

A bone cancer diagnosis can feel overwhelming, but comprehensive care helps manage both physical and emotional challenges.

  • Follow your medication and rehabilitation plan closely
  • Eat a nutritious diet to support bone and immune health
  • Engage in gentle physical activity to maintain strength
  • Attend regular scans and check-ups
  • Join support groups for emotional and social support

With early treatment and supportive care, many patients continue to lead fulfilling lives.

Navigating Bone Cancer in Singapore

The Problem and Types of Bone Cancer

Bone cancer is relatively rare but serious, often affecting long bones such as the femur or pelvis. It may be primary (originating in bone tissue) or secondary (spread from another organ). The main types include osteosarcoma, chondrosarcoma and Ewing sarcoma, each differing in aggressiveness and response to treatment. Recognising symptoms such as persistent bone pain, swelling or unexplained fractures is key to early diagnosis, effective intervention and better long-term outcomes for those living with bone cancer in Singapore.

Consultation to Ongoing Care

Managing bone cancer begins with a specialist consultation, often after your general practitioner refers you for imaging due to ongoing pain or bone abnormalities. The specialist will assess your symptoms, review your scans and explain the biopsy findings to confirm the diagnosis.

Bone cancer care in Singapore is available through both public and private healthcare institutions. After initial treatment, patients continue with regular follow-up scans and physical rehabilitation to maintain mobility and strength. Supportive therapies, including physiotherapy and nutritional counselling, help promote recovery and manage long-term side effects.

When to Seek Help

You should seek medical advice if you experience persistent bone pain lasting more than two weeks, swelling around a bone or joint, or unexplained fractures. Additional symptoms such as fatigue, fever or unintended weight loss may also indicate cancer activity that needs further evaluation.

Early diagnosis through imaging and biopsy significantly improves the bone cancer prognosis. If you are experiencing these symptoms, consult a bone cancer specialist for assessment and guidance on the next steps.

Find a Bone Cancer Specialist in Singapore

You don’t have to face bone cancer alone. If you or a loved one has symptoms or concerns about bone cancer, don’t delay seeking expert advice.

An experienced specialist can confirm your diagnosis, explain your bone cancer stage and recommend the most suitable treatment approach.

Get in touch with a Bone Cancer specialist today. You can contact us via WhatsApp to book an appointment or ask any questions.

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