4 doctors weighed in:

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

4 doctors weighed in
Dr. Scott Mackinnon
Anesthesiology
2 doctors agree

In brief: 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.

In brief: 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. Scott Mackinnon
Dr. Scott Mackinnon
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In brief: 6-10 weeks

It stays swollen, and is in danger of having rupture or other issues for up to three months.

In brief: 6-10 weeks

It stays swollen, and is in danger of having rupture or other issues for up to three months.
Dr. Terry Simpson
Dr. Terry Simpson
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