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Most people notice swollen lymph nodes at some point—usually in the neck, under the jaw, armpits, or groin. These small, bean-shaped glands are part of your immune system, and swelling is often a sign that your body is fighting something off. What Do Lymph Nodes Do? Lymph nodes filter lymphatic fluid, trapping viruses, bacteria, and abnormal cells. When the immune system is activated, lymph nodes fill with extra white blood cells and become enlarged. Common Causes of Swollen

Sickle cell disease (SCD) has long been one of the most challenging inherited blood disorders to treat. For decades, management focused mainly on controlling pain crises, preventing infections, and reducing complications. But in the past few years, advances in genetic medicine have completely transformed the landscape—offering, for the first time, true curative options for many patients. This article explains these breakthroughs in clear, patient-friendly language while high

Anemia is one of the most common blood disorders worldwide, affecting millions of people of all ages. At its core, anemia means you don’t have enough healthy red blood cells—or enough hemoglobin—to carry oxygen efficiently throughout your body. Common Symptoms of Anemia Because anemia reduces the oxygen that tissues receive, symptoms can range from mild to significant: Fatigue or low energy Pale skin Shortness of breath Dizziness or feeling faint Heart palpitations Headaches

White blood cells (WBCs) are an essential part of your immune system, acting as your body’s rapid response team against infections, inflammation, stress, and other threats. A high or low white blood cell count is a common finding on blood tests, but it can mean many different things depending on your symptoms and overall health. What Is a Normal WBC Count? Most adults have a WBC between 4,000 and 11,000 cells per microliter. But the “normal” range can vary depending on the l

Hemoglobin is a protein, found in red blood cells, that carries oxygen from the lungs to tissues and organs. It plays a crucial role in our bodies, yet many people overlook its importance until health issues arise. Without enough hemoglobin, the body struggles to function properly, leading to fatigue, weakness, and other more serious conditions. What Hemoglobin Does in the Body Hemoglobin is a protein made up of four subunits, each containing an iron atom that binds oxygen. T

A Complete Blood Count (CBC) is one of the most common blood tests doctors order—and for good reason. This single test offers a window into your overall health by measuring the major components of your blood: red blood cells, white blood cells, and platelets. Each of these plays a critical role in how your body functions, and changes in their levels can signal a wide range of conditions. What the CBC Measures A CBC includes many values, but the most important ones for most pe