This is because the spleen processes a large blood supply, so rupture of the spleen may lead to rapid, massive blood loss. Its location makes the spleen fairly well-protected, but it can still be injured by blows to the chest and side, such as those that are sometimes sustained in sports or in car accidents.Ī ruptured spleen can be very dangerous to the rest of the body. It normally cannot be felt or detected, as it is only about the size of the fist and is tucked away behind the stomach. In most people, the spleen is located under the left side of the ribcage, next to the stomach. There is some research suggesting that the spleen might have a poorly-understood role in preventing cardiovascular disease, as one study found that people with their spleens removed were more likely to die of cardiovascular disease than a control group.įor this reason, some scientists advocate for better injury prevention, such as protective body armor for sports players, to reduce the possibility of spleen injuries that may result in the need for spleen removal. An injured or ruptured spleen cause massive blood loss which can quickly become life-threatening. The spleen is most commonly removed because of injury, such as injuries sustained during car crashes or playing sports. With thorough safeguards such as vaccinations and antibiotics and the ability to take iron supplements if necessary, people without spleens are simply advised to be a little more careful about getting vaccinated and avoiding disease. In the modern era, spleens are not necessary for survival. The spleen performs numerous helpful functions for the body, including: Interestingly, about 10% of people have an “accessory spleen” – a small extra spleen! This causes no problems or symptoms, and most people only find out they have an accessory spleen if they require imaging scans of their body for another reason. People without a spleen typically lead normal, healthy lives, though they are advised to take regular immunizations to protect against infection. This is one reason why people with sickle cell disease should get extra immunizations. The spleen can also be damaged by sickle cell disease, which can block blood flow to the spleen. In these cases the spleen may pose more of a risk than a benefit to the rest of the body, and doctors may elect to perform surgery to remove it. The spleen may need to be removed if it becomes injured or infected. Some of its functions can be taken over by other organs if the spleen is removed other functions of the spleen are helpful in case of emergency, but are not required for survival under most circumstances. Though the spleen is useful to the body, it is not essential for survival.
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