Multiple Myeloma Symptoms — Bone Pain, Fatigue & When to Get Tested

The most common multiple myeloma symptoms follow the word CRAB: high Calcium, Renal (kidney) problems, Anaemia, and Bone damage. In everyday terms, this means bone pain - often in the back, ribs or hips - along with tiredness from low red blood cells, frequent infections, and sometimes kidney trouble shown by foamy urine or swelling. Many people first notice persistent back pain or unusual exhaustion. Importantly, most people do not have all four signs at once, and many of these symptoms have ordinary, harmless causes. They become more meaningful when two or more appear together, or when they do not settle over several weeks. If that sounds like you, a simple set of blood tests can bring clarity.

No, and this is genuinely reassuring. The vast majority of back, hip and joint pain comes from muscle strain, posture, arthritis or normal wear, not cancer. Myeloma-related bone pain tends to behave differently: it sits deep in the bone rather than the muscle, lasts or worsens over weeks, may feel worse at night, and does not ease with rest or simple painkillers. It can also appear with a fracture from a minor knock. If your pain improves with rest and is linked to a clear cause like lifting something heavy, it is very unlikely to be myeloma. But if pain lasts more than four to six weeks, keeps worsening, or sits alongside fatigue or infections, please get it checked - that is sensible, not anxious.

Consider tests if bone pain lasts more than four to six weeks without improving, keeps getting worse, or appears with other warning signs. Pay attention if a bone fractured after only a minor fall, if you also feel constantly tired or breathless, if infections keep returning, or if you notice unexplained weight loss. Pain that wakes you at night and does not respond to rest is also worth reviewing. None of these alone confirms myeloma - they simply suggest a conversation with a doctor is wise. The first tests are usually straightforward: a blood count, protein and kidney checks, and perhaps an X-ray. At CION, we order only what your situation truly needs, with transparent costs and no unnecessary tests.

Fatigue in multiple myeloma usually comes from anaemia - a shortage of red blood cells. Myeloma grows inside the bone marrow, the factory that makes blood cells. As abnormal plasma cells multiply, they crowd out healthy cells, so the marrow makes fewer red cells. Red cells carry oxygen, so when they fall, you may feel breathless, weak, pale or have a racing heart, even after a good night's sleep. Kidney strain and high calcium can add to this tiredness. The important point is that anaemia has many causes, most of them not cancer - such as iron or vitamin deficiency. A simple blood count tells us whether anaemia is present, and further tests help find the reason behind it.

Myeloma plasma cells produce abnormal proteins that travel in the blood. When these proteins reach the kidneys in large amounts, they can clog the tiny filters and slow kidney function. Signs of kidney involvement include foamy urine, swelling in the legs or ankles, reduced urine output, nausea and tiredness. Blood tests may show a rising creatinine level, and high calcium can also strain the kidneys further. The encouraging news is that kidney problems are not always permanent - when myeloma is treated and fluids are managed, kidney function can improve in many people. This is one reason we encourage early testing when symptoms point that way, so the kidneys are protected as soon as possible.

Healthy plasma cells make antibodies that fight infection. In multiple myeloma, abnormal plasma cells take over and crowd out the normal ones, so the body makes fewer effective antibodies. This weakens your defences, making chest infections, urine infections and skin infections more likely and harder to shake off. If you notice infections returning again and again, or taking longer than usual to clear, it is worth mentioning to a doctor - especially alongside bone pain or fatigue. That said, frequent infections have many ordinary causes too, from diabetes to simple seasonal illness. A blood test that measures your antibody levels and blood counts helps a doctor understand whether your immune system needs a closer look.

Yes. There is an early stage called smouldering myeloma, where abnormal proteins are present but the person feels well and has no CRAB symptoms. It is sometimes found by chance during routine blood tests for something else. In this stage, treatment is often not started straight away; instead, doctors monitor carefully with regular tests. This watchful approach is deliberate and safe - it avoids unnecessary treatment while keeping a close eye on any change. If you have been told your blood test shows a high protein but you feel well, try not to be alarmed. A haemato-oncologist can explain whether you simply need monitoring, and how often, so you feel informed rather than worried.

Diagnosis usually starts with simple blood and urine tests: a complete blood count for anaemia, calcium and kidney (creatinine) levels, and protein tests that look for the abnormal myeloma protein called M-protein. A marker called beta-2 microglobulin may also be checked. Imaging such as X-ray, MRI or PET-CT looks for bone thinning or fractures. If these point towards myeloma, a bone marrow test confirms it - this is done with local anaesthetic and usually takes only a few minutes. Not everyone needs every test. At CION, each patient's reports are reviewed by a tumour board, so the plan reflects a team's careful thinking. We keep costs transparent and avoid any test that would not genuinely help your diagnosis.

Multiple myeloma is a serious blood cancer, and we will always be honest with you about that. While it is generally considered a long-term, manageable condition rather than one that is fully cured, treatments have improved a great deal in recent years. Many people live well for years with good control of the disease, ongoing care and attention to bone and kidney health. The outlook depends on the stage at diagnosis, your overall health and how the disease behaves, so no two journeys are the same. We do not promise miracles or guaranteed cures. What we do promise is a clear, caring plan led by a team, decisions made for your healing, and that we walk this journey with you at every step.

Yes - a check is always reasonable, and you do not need severe symptoms to ask. Many people delay because they fear wasting a doctor's time or fear bad news. Neither should hold you back. If you have bone pain that has lingered for weeks, ongoing tiredness, repeated infections, or simply a nagging worry after reading about symptoms, a conversation can settle your mind. Most people who come in worried about bone pain turn out not to have myeloma at all, and they leave reassured. At CION, your first visit is a free 45-minute consultation with a senior haemato-oncologist who listens without rushing. You deserve clear answers, and getting them early is always the wiser choice.