A multiple myeloma is a rare form of blood cancer that affects the plasma cells in the immune system and may eventually cause life-threatening complications if left untreated. Most people affected by the condition may experience fatigue, unexplained weight loss, muscle aches or weakness, and recurrent infections. Knowing the symptoms helps you identify them, consult a healthcare professional, and treat them early. This blog will discuss seven key signs of multiple myeloma. What is multiple myeloma? This type of blood cancer affects plasma cells, white blood cells that produce antibodies (proteins that help the body fight infections.) In multiple myeloma, the plasma cells become cancerous and multiply uncontrollably, crowding out normal blood cells and forming tumors in bones and other tissues. The abnormal plasma cells in multiple myeloma produce a type of antibody called a monoclonal protein or M protein, which can cause damage to various organs and tissues in the body. The M protein can accumulate in the blood, urine, and other tissues, leading to symptoms such as bone pain, anemia, fatigue, frequent infections, kidney damage, and nerve damage. Seven symptoms of multiple myeloma Fatigue Fatigue is a common symptom of multiple myeloma, which can often be overwhelming. People without myeloma may also sometimes experience fatigue due to stress or illness.