Normal Size of Spleen: What Is Called Normal Size of Spleen in Adults

Although the spleen is a very tiny part of the body’”the normal size of spleen in adults is only about 10 cm in length and no more than about 3 centimeters thick when seen from an ultrasound’”its small size belies its importance to the body. It stores up blood for possible use during hemorrhagic shock. It also stores up iron for the body and for distribution by the blood. However, this impact of spleen on the body may be difficult to conceive as an actual state of things because of the small normal size of spleen.

Normal Size of Spleen

Being an important element in the distribution of blood in the body and many other things related to it, it sometimes happen that the spleen will become enlarged.

Causes of Abnormal Size of Spleen

Although there are various causes of small and larger spleen, the most common cause is due to infection or some anomalies of the blood. One way to determine if the spleen is enlarged is through an ultrasound. Because of its convenience, ultrasound testing is the most frequently resorted examination.

The normal size of spleen on ultrasound is about 10-12 cm.

However, having a spleen size of about 12 cm is considered to be the edge of normal size of spleen In fact, patients with spleen of this size are normally instructed to undergo other examinations to be certain that everything is all right.

Most examinations determining the normal size of spleen are expressed in cm. This is done because measuring the spleen in centimeters is the closest possible way to determine its size on the tiniest scale for better accuracy. Otherwise, if the measurement is expressed in inches, minimal variations may escape notice and its significance may be lost. On the other hand, measuring the normal size of spleen in very minute measurements such as in millimeters is considered unnecessarily going minute because changes at such degrees are very small to matter.


  1. SW said:

    I am suffering from pain in upper left quarter below ribs. Body of my temperature is usually high. I always get weakness, low HB and my hemoglobin is 6.7. I find that my spleen size is 93 mm (I am 22 years old with height 165 cm) by sonography. Why such pain is there please advised me.

    February 23, 2011
  2. DF said:

    My friend, a healthy female healthy 47 yrs old and physically fit, died of a spleen that was too small. How was the spleen size not noticed at another time? She has a biological child. Would it not have been noticed? It just doesn’t sound like a good enough answer from the coroner! Not satisfied.

    February 1, 2012
  3. KR said:

    My dad’s age is 53. He is suffering from Hepatitis C and his spleen is enlarged. Can you tell me the remedial measures?

    February 16, 2014
    • PUP said:

      In advanced stages of hepatitis C, often the spleen becomes enlarged. This is the result of cirrhosis of liver due to hepatitis C. Portal hypertension then causes back pressure in spleen and as a result it gets enlarged. There are drugs to reduce portal hypertension. However, you have to consult a gastroenterologist (physician specializing in abdominal complaints) for further treatment. Treatment of cirrhosis may help to reduce portal hypertension and thus the enlarged spleen. In most cases removal of spleen is not considered as there are many associated complications. Follow the recommendations of the treating physician.

      February 17, 2014
  4. PL said:

    I have enlarged spleen. It is 136 mm and my hemoglobin is too low. It is 6.5/dl. Most importantly I am pregnant. I do not know the reason for enlargement of spleen. Tell me what I have to do.

    February 16, 2015
    • PUP said:

      The first important thing that you have to do is to consult a physician. You should also consult a gynecologist since you are pregnant. After examination the physician may recommend several tests to rule out underlying causes for spleen enlargement. There are several causes for spleen enlargement such as malaria, viral infection, leukemia, pressure in the veins of liver or spleen, metabolic disorders, etc. Once the diagnosis is made, treating the condition becomes easy.

      February 17, 2015
  5. SS said:

    I have spleen enlargement problem. Since few months I am also suffering from tuberculosis. Is it a serious problem?

    March 11, 2015
    • PUP said:

      There are several causes of enlargement of spleen. You need to know the exact cause of spleen enlargement. Consult your doctor to find the reason of enlargement. You are also suffering from tuberculosis. Yes you cannot take both this disorders lightly. Follow the recommendation given by your doctor regarding medications for tuberculosis as well as for the spleen health.

      March 12, 2015
  6. Muren said:

    My son is 12 years old and recently had an ultrasound of his spleen, which was measured at 12.5 cm. His symptoms, over the last six weeks is fatigue, neck stiffness, decrease in appetite, headache, dizziness, paleness, mild sore throat and fever on and off. Mono spot came negative. What could be going on? We really thought this was Mononucleosis.

    January 27, 2017
  7. RJ said:

    My spleen size 12.4. Can anyone advice me what must I do?

    May 1, 2017
    • PUP said:

      Spleen enlargement can be due to many reasons. What other symptoms are present other than enlarged spleen? There are many conditions that may cause enlarged spleen. Once the cause is treated, spleen size will return back to normal.

      September 6, 2018

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