6. Enlarged Spleen: The Hidden Hazard of Mononucleosis
One of the most concerning aspects of Infectious Mononucleosis is the enlargement of the spleen. Located under the ribcage on the left side, the spleen acts as a blood filter and immune system fortress. In cases of Mononucleosis, it often becomes swollen and tender, turning into a potential health risk.
The swelling is usually mild and might not be felt, but for some patients, it can be significantly enlarged and painful. This creates a risk for a sudden and severe complication – a splenic rupture. Though rare, a ruptured spleen is a medical emergency and requires immediate attention.
Why does this happen? The spleen works hard to filter infected cells when the Epstein-Barr Virus attacks. This extra work, coupled with inflammation, causes the spleen to swell.
Patients with an enlarged spleen are advised to avoid heavy lifting and contact sports during their recovery period. Any sudden or sharp pain on the left side of the body under the ribs should be treated as a medical emergency.
Regular medical check-ups are crucial when Mononucleosis is diagnosed, to monitor the spleen’s condition and to decide when it’s safe for the patient to resume normal activities. (6)
