What Is Multiple Myeloma — A Plain, Honest Guide

Multiple myeloma is a cancer of plasma cells, a type of white blood cell found in your bone marrow. Normally these cells help fight infection. In myeloma, one plasma cell becomes faulty and multiplies out of control. These abnormal cells crowd out healthy blood cells and make a useless protein called M protein. The word "multiple" is used because the disease usually appears in several areas of bone marrow at the same time. Because plasma cells live throughout the body, myeloma is treated as a blood cancer by a haemato-oncologist. It is not contagious and is not caused by anything you did. With modern treatment, it is highly controllable for many years.

For most people, multiple myeloma is not yet permanently curable, and we will always be honest with you about that. However, this does not mean the news is bad. Today myeloma is treated much like a long-term, controllable condition. The goal of treatment is remission, meaning the disease becomes quiet and inactive. Many people stay in remission for years and live full, active lives, returning to work, family and the things they enjoy. If the disease becomes active again, treatment can be changed to bring it back under control. A small number of people, especially after a strong response and transplant, can stay disease-free for a very long time. Your CION specialist will explain what is realistic for your specific situation.

The most common early sign is bone pain, often in the back, ribs or hips, that does not settle with rest. Other signs include unusual tiredness from anaemia, frequent infections, easy bruising or bleeding, and increased thirst or confusion from high calcium. Some people first notice frothy urine, swelling in the legs, or kidney problems on a routine blood test. Many of these symptoms are vague and can be mistaken for ageing or everyday stress. That is exactly why early evaluation matters. Simple blood and urine tests can flag myeloma before it causes serious damage. If you have ongoing bone pain with tiredness, it is worth asking your doctor for these tests.

Myeloma cells release substances that break down bone faster than the body can rebuild it. This makes bones thinner and weaker over time. The result can be ongoing bone pain, especially in the spine, ribs, hips and skull. Some people develop small fractures from very little force, or notice a loss of height as spinal bones compress. As bone breaks down, calcium is released into the blood, which can cause thirst, nausea, constipation and confusion. The good news is that bone-protecting medicines can reduce pain and lower the risk of fractures. Treating the myeloma itself also helps the bones recover. Your team will protect your bones as a core part of your overall care plan.

The abnormal plasma cells in myeloma produce large amounts of a protein called M protein, or light chains. The kidneys are responsible for filtering the blood, and these proteins can clog and damage the tiny filtering units. High calcium from bone breakdown and dehydration can add to the strain. Some people first learn they have myeloma when a blood test shows reduced kidney function. Early signs may include frothy urine, swelling in the legs, or unusual tiredness. The encouraging part is that kidney damage can often improve once treatment lowers the protein level and calcium is corrected. Staying well hydrated and avoiding certain painkillers also helps. Your specialist will monitor your kidneys closely throughout treatment.

Diagnosis is built step by step. Blood tests check haemoglobin, calcium, kidney function and the abnormal M protein. Urine tests look for myeloma protein that the kidneys filter out. A bone marrow biopsy, taken from the hip bone, confirms the diagnosis by showing how many abnormal plasma cells are present. Imaging such as low-dose CT, MRI or PET-CT maps any bone damage. Staging and genetic risk tests then help guide the right treatment. At CION, we believe in no unnecessary tests, so your doctor explains why each one is needed. Every patient's results are reviewed by a tumour board before a plan is finalised, which means several specialists agree on your care, not just one person.

Both are blood cancers that begin in the bone marrow, but they affect different cells. Multiple myeloma starts in plasma cells, which make antibodies, and it tends to damage bones, kidneys and blood counts. Leukaemia usually starts in other types of white blood cells and floods the blood with immature cells. Myeloma often shows up as bone pain, high calcium and a specific protein in the blood, while leukaemia more commonly causes very high or very abnormal white cell counts. The two are diagnosed and treated differently, by specialists called haemato-oncologists. If you are unsure which condition you or a loved one has, bring your reports to a consultation and we will explain them clearly in plain language.

In most cases, doctors cannot point to a single cause, and you should know that myeloma is not your fault. It is not caused by diet, lifestyle choices or anything you did wrong. Research has identified some factors linked to higher risk, including older age, being male, a family history of myeloma, and certain long-term exposures to specific chemicals or radiation. It often develops from a silent earlier stage called MGUS, where a small amount of abnormal protein is present without symptoms. However, having a risk factor does not mean you will get myeloma, and many people with myeloma have no clear risk factor at all. The important step is recognising symptoms early and getting the right tests.

Multiple myeloma is not an infectious disease, so it cannot be passed to family members through touch, sharing food or daily contact. It is also not a strongly inherited condition in the way some diseases are. Most people with myeloma have no family history at all. There is a slightly higher chance of myeloma in close relatives of someone with the disease, but the overall risk for any individual family member still remains low. There is no routine genetic test recommended for healthy relatives. If you are worried about your family, the most useful thing is to encourage loved ones not to ignore ongoing bone pain or unexplained tiredness. Your CION doctor can answer any specific family concerns during your consultation.

Treatment is tailored to each person and usually combines several approaches. Targeted drugs and immune-based medicines attack myeloma cells more precisely than older chemotherapy. For suitable patients, a stem cell transplant can lead to long, deep remissions. Bone-protecting medicines reduce pain and fracture risk, while supportive care manages anaemia, infection and kidney health. After the first strong response, maintenance therapy often keeps the disease quiet for a long time. At CION, every plan is reviewed by a tumour board, your costs are kept transparent, and decisions are made for healing, not billing. We take time to explain each option so you can choose with confidence. Treatment can be adjusted over the years as your needs change.