The Spleen: Our Blood-Filtering, Immunity-Boosting Ally

Shivendra Pratap Singh


High Court Lucknow

Medico Legal

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Published on: 8 Aug, 2023

Spleen: The spleen might not enjoy the celebrity status of organs like the heart or the brain, but its importance in maintaining our body’s homeostasis and immunity is unparalleled. Often likened to a blood filter and forming an integral part of the lymphatic system, the spleen is a vital organ worth our attention. Join us as we delve into the world of the spleen, unraveling its functions, significance, and ways to ensure its well-being.

1. Introduction to the Spleen

Nestled beneath the ribcage and adjacent to the stomach, the spleen is a soft, spongy organ that primarily filters blood, removes damaged blood cells, and plays a key role in our immune system.

2. Anatomy and Location

  • Structure: The spleen is an oval-shaped organ, purple in color, and is located in the upper left part of the abdomen, just behind the ribcage.
  • Surrounding Relations: It’s protected by the 9th to 12th ribs and is positioned close to the stomach and the left kidney.

3. Functionality and Role

  • Blood Filtration: The spleen filters the blood, removing old or damaged red blood cells and recycling iron content from hemoglobin.
  • Platelet & White Blood Cell Storage: It acts as a storage site for platelets (essential for blood clotting) and white blood cells (crucial for fighting infections).
  • Immunity: With its white pulp filled with white blood cells, the spleen identifies pathogens in the blood and sets off an immune response. It produces antibodies and helps in removing harmful bacteria and viruses.
  • Blood Reservoir: The spleen can contract, releasing its stored blood into circulation during times of need, like in cases of sudden blood loss.

4. Clinical Significance

  • Splenomegaly: An enlargement of the spleen, often caused by infections, liver diseases, or blood cancers.
  • Ruptured Spleen: Trauma, like a car accident or a sports injury, can cause the spleen to rupture, leading to internal bleeding and requiring emergency care.
  • Sickle Cell Disease: This inherited condition can lead to the blockage of splenic blood vessels, causing spleen damage.
  • Splenic Infarction: When blood flow to the spleen is blocked, usually due to a blood clot, it can cause tissue death in the spleen.

5. Taking Care of Your Spleen

  • Vaccinations: Ensure you’re vaccinated against infections like pneumonia and meningitis, which can affect the spleen.
  • Avoid Injuries: Especially in contact sports, using protective gear can help prevent trauma to the spleen.
  • Stay Hydrated and Eat Right: Proper hydration and a balanced diet support overall health, including spleen function.
  • Regular Check-ups: This helps in early detection of any potential issues not just with the spleen but with overall health.


The spleen, while modest in size and often overlooked, is a powerhouse of functions, ensuring our blood remains clean and our bodies stay disease-free. This unsung hero of our immune system serves as a constant reminder of the intricate, interconnected nature of our bodily systems. As we journey through understanding our body, giving the spleen its well-deserved spotlight becomes essential in appreciating the symphony of life within us.


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