11 doctors weighed in:

How long does mono last?

11 doctors weighed in
Dr. James Ferguson
Pediatrics
5 doctors agree

In brief: 2-3 wks

For most teens or adults this would gradually improve by 2-3 weeks which is the general contageous period.
A subset of 1/4 may have persisting problems (tired,lethargic) for 2-3 mo. There is a myth about a "chronic" mono (yrs) that has been refuted by the CDC.

In brief: 2-3 wks

For most teens or adults this would gradually improve by 2-3 weeks which is the general contageous period.
A subset of 1/4 may have persisting problems (tired,lethargic) for 2-3 mo. There is a myth about a "chronic" mono (yrs) that has been refuted by the CDC.
Dr. James Ferguson
Dr. James Ferguson
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Dr. Danny Proffitt
Family Medicine
2 doctors agree

In brief: Varies

Mononucleosis is a viral illness.
It can last from a few days to several weeks to months. Rest, nutrition, and time are necessary for treatment. One can have a mild case or a more severe case to include a hepatitis. If not progressing, please follow up with your pcp or an infectious disease doctor.

In brief: Varies

Mononucleosis is a viral illness.
It can last from a few days to several weeks to months. Rest, nutrition, and time are necessary for treatment. One can have a mild case or a more severe case to include a hepatitis. If not progressing, please follow up with your pcp or an infectious disease doctor.
Dr. Danny Proffitt
Dr. Danny Proffitt
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Dr. Michael Ein
Internal Medicine - Infectious Disease
1 doctor agrees

In brief: See below

Most cases of mono resolve over a 2-3 week period.
The sore throat lasts 3-5 days then resolves over the next 7 days. Fever usually lasts 10-14 days but is low grade for the last 5-7 days. The fatigue and prostration resolves more gradually sometimes with periods of improvement alternating with recrudescence.

In brief: See below

Most cases of mono resolve over a 2-3 week period.
The sore throat lasts 3-5 days then resolves over the next 7 days. Fever usually lasts 10-14 days but is low grade for the last 5-7 days. The fatigue and prostration resolves more gradually sometimes with periods of improvement alternating with recrudescence.
Dr. Michael Ein
Dr. Michael Ein
Thank
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