How Much Does the Spleen Weigh? (Answered)

You might be curious about the spleen, an often overlooked but essential organ responsible for filtering and recycling blood in our bodies. The spleen plays a significant role in our immune system, helping to protect us from infections. One interesting aspect to explore is just how much this vital organ weighs.

Typically, a healthy adult spleen weighs between 150 to 200 grams (5.3 to 7 ounces) and is roughly the size of your fist. However, there can be variations depending on factors such as age, gender, and overall health.

The weight of the spleen might not be something you think about daily, but understanding this important organ will help you appreciate its significance in maintaining your overall health.

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A healthy adult spleen weighs between 150 to 200 grams (about 5.3 to 7 ounces). However, the weight can range from as light as 100 grams to as heavy as 400 grams.

Understanding the Spleen

Your spleen is a small, yet vital organ located in the upper left abdomen, just under your ribcage. Its primary functions involve filtering blood, producing white blood cells, and storing platelets. It’s essential to your immune system, helping protect your body against infections.

The weight of your spleen may vary depending on a few factors, such as your age, sex, and overall health. A healthy adult spleen weighs between 150 to 200 grams (about 5.3 to 7 ounces). However, the weight can range from as light as 100 grams to as heavy as 400 grams. It’s important to remember that this is just a general guideline, and individual variations are common.

Occasionally, the spleen may become enlarged, which is called splenomegaly. This condition can cause the spleen to weigh significantly more than the standard weight range.

Various factors, including infections, blood disorders, and liver diseases can cause splenomegaly. If you suspect that you might have an enlarged spleen, it’s crucial to consult your healthcare provider to determine the underlying cause and receive appropriate treatment.

To maintain a healthy spleen, you can actively support your immune system by following a few simple guidelines:

  • Eat a balanced diet, rich in fruits, vegetables, and whole grains.
  • Exercise regularly to promote healthy blood circulation.
  • Get enough sleep to allow your body time to repair and regenerate.
  • Stay up-to-date with vaccinations to protect against infections.
  • Avoid smoking and excessive alcohol consumption, as they can negatively impact your immune system.
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Taking these steps will not only support the health of your spleen but also contribute to your overall well-being. Remember that keeping your spleen healthy is essential to maintaining a strong immune system and safeguarding your body from illness.

Average Weight of the Spleen

Your spleen, an important organ in the upper left side of your abdomen, is crucial in supporting your immune system and filtering your blood. It’s normal for you to be curious about its size and weight.

The average weight of a healthy adult spleen is usually between 100 and 200 grams (3.5 to 7 ounces). However, remember that size and weight can vary depending on age, sex, body size, and overall health.

During infancy and childhood, the spleen continues to grow and reach its relative size compared to the rest of your body. By the time you become an adult, it maintains a more or less stable size, unless affected by certain medical conditions.

It’s important to note that certain factors can cause the spleen to enlarge, a condition called splenomegaly. These factors include infections, liver diseases, blood disorders, and even some cancers. The spleen can weigh significantly more than the typical range in such cases.

In conclusion, while the average spleen weight falls between 100 and 200 grams, there can be considerable variation based on individual factors. Knowing this piece of information can help you gain a better understanding of this vital organ and its role in your body.

Factors Influencing Spleen Weight


As you age, your spleen may undergo physiological changes that can affect weight. For example, the weight of a newborn’s spleen is about 6 grams, while the average weight of an adult spleen is approximately 150 grams.

Generally, there is a gradual increase in spleen weight during childhood, reaching its peak in young to middle-aged adults. After that, the spleen weight might slightly decrease in older individuals.


Your gender can also impact the weight of your spleen. Research has shown that the average male spleen is larger and weighs more than the average female spleen. This difference may be attributed to general differences in body size, although more research is needed to explain this phenomenon completely.

Body Size

Body size is a significant factor influencing spleen weight. For instance, if you are taller and have a larger body structure, your spleen might also be larger and heavier.

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People with a smaller physique tend to have a smaller spleen size. In some cases, medical conditions like obesity or malnutrition may affect your spleen size and weight.


Measuring Spleen Weight

When you want to determine the weight of a spleen, it’s important to understand that the average spleen weight may vary among individuals. Factors such as age, gender, and overall health can influence the weight of this organ. However, some basic information can give you a general idea of the spleen’s weight.

First, the spleen is typically located in the upper left quadrant of the abdomen, just beneath the rib cage. It’s responsible for filtering blood, producing white blood cells, and helping to regulate your immune system.

A healthy adult’s average spleen weight is about 150 grams (approximately 5.3 ounces). This measurement can serve as a reference point for comparison. The spleen is commonly described as being roughly the size of a fist.

To get a better idea of spleen weight in various situations, consider the following information:

  • Infants: In newborns, the spleen is typically smaller and weighs around 18 grams (0.63 ounces).
  • Children: As children grow, their spleen also increases in size. The spleen of an average 10-year-old might weigh around 50 to 60 grams (1.76 to 2.12 ounces).
  • Adults: In most adults, the spleen weighs between 100 and 200 grams (3.5 to 7 ounces).

Remember that an individual’s spleen weight might differ from these averages. Additionally, certain medical conditions or abnormalities may cause the spleen to be larger or smaller than expected.

For example, some individuals may have a congenital absence of the spleen, a condition known as “asplenia.” Others could have an enlarged spleen (splenomegaly) related to an underlying disease or infection.

When assessing spleen weight, remember that it’s crucial to consider factors like age, overall health, and any existing medical conditions. Consult with a healthcare professional to gain a more accurate understanding of your specific situation.

In summary, spleen weight varies among individuals, but the average weights listed may serve as a helpful starting point. Always consider personal factors and potential medical issues when discussing the weight of your spleen with a healthcare provider.

Spleen Weight in Medical Studies

In the world of medical studies, spleen weight is an important factor to examine. As a part of your immune system, your spleen plays a critical role in maintaining your overall health. The average weight of a healthy adult spleen is about 150 grams. However, this number can vary depending on factors like age, sex, and overall health.

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Medical professionals are often interested in studying spleen weight, as it can reveal underlying health issues or conditions. For example, an enlarged spleen, or splenomegaly, can indicate an active infection or a chronic condition like liver cirrhosis. On the other hand, a smaller spleen might be present in cases of congenital spleen disorders.

Keep in mind that your spleen weight can change throughout your life. Factors that can impact spleen weight include:

  • Growth and development during childhood and adolescence
  • Age-related changes in the organ structure
  • Various health conditions

It’s important to remember that every individual’s spleen weight may differ, and these values should always be considered in the context of a comprehensive medical evaluation.

If you or your healthcare provider have concerns about your spleen weight, be sure to discuss them and explore potential underlying causes. Your health is a priority, and understanding more about your spleen weight can help inform decisions about your well-being.

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Variations in Spleen Weight

Your spleen is an important organ in your body, playing a role in filtering blood and supporting your immune system. While the average spleen weight for an adult is around 150 grams, there can be considerable variation between individuals.

One factor that can affect spleen weight is age. As you grow older, your spleen may become smaller in size and, therefore, lighter in weight. This is because the organ can atrophy or shrink as part of the natural aging process.

Another factor influencing spleen weight is your overall body size. Individuals with larger body frames may have larger spleens, while those with smaller frames may have smaller ones. However, this is not always the case, as biological variations can still occur within similar body types.

Certain medical conditions and illnesses can also influence the weight of your spleen. For example, an enlarged spleen (splenomegaly) can lead to a significant increase in its weight. Various factors, such as infections, liver diseases, or blood disorders can cause this condition.

On the other hand, the weight of your spleen might decrease if it’s affected by a condition called hyposplenism, which involves the atrophy or underdevelopment of the spleen. This can be caused by congenital factors or acquired due to diseases or surgical removal.

In summary, spleen weight varies due to factors such as age, body size, and medical conditions. It is important to remember that individual differences are common and should be considered when assessing the health of your spleen.

About Kevin Jones

My name is Kevin Jones, and I'm the proud founder of this website. I'm a self-professed measurement enthusiast, and I've been passionate about measuring things for as long as I can remember. On this website, you'll find information on all aspects of dimensions, including measurements and weight of stuff.