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A 35-year-old member asked:

If i get mono, how long will my spleen stay swollen?

3 doctor answers5 doctors weighed in
Dr. Scott Mackinnon
Anesthesiology 33 years experience
Duration of illness: The fact that one's spleen swells during the course of mononucleosis means that the spleen is functioning properly. It is a filter for bacteria and abnormal blood cells, and as such will swell in a state that gives rise to these conditions. The spleen size is often monitored by your doctor while you are ill and the recession of spleen size is an indication of improving health.
Dr. Terry Simpson
General Surgery 35 years experience
6-10 weeks: It stays swollen, and is in danger of having rupture or other issues for up to three months.
Dr. Thomas Namey
Rheumatology 48 years experience
Can be enlarged for: months. Splenic enlargement can take a while to regress!

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A 50-year-old member asked:

How long will it take my spleen to recover from having mono?

2 doctor answers2 doctors weighed in
Dr. Scott Mackinnon
Anesthesiology 33 years experience
It will vary: This depends on how long it takes for the mono to resolve. The spleen is composed of lymphoid tissue, which commonly swells during mono. The doctor will assess the progress of mono often times by examining the spleen. As the mono resolves, so will the size of the spleen. This takes between two weeks and two months or more.

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Last updated Mar 5, 2018

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