2 doctors weighed in:
What are the different reasons for an unexplained fever in a 25 year old?
2 doctors weighed in

Dr. Dan Fisher
Internal Medicine
1 doctor agrees
In brief: 4 categories.
If the fever (t>100.
5) has been present for 3 weeks or more and has defied reasonable attempts to explain, the most likely cause of the fever will eventually be "unexplained." another 20% of patients will eventually be found to have an inflammatory cause, another 20% will be found to have an occult infection and 10% will be found to have a malignancy.

In brief: 4 categories.
If the fever (t>100.
5) has been present for 3 weeks or more and has defied reasonable attempts to explain, the most likely cause of the fever will eventually be "unexplained." another 20% of patients will eventually be found to have an inflammatory cause, another 20% will be found to have an occult infection and 10% will be found to have a malignancy.
Dr. Dan Fisher
Dr. Dan Fisher
Thank
Get help from a real doctor now
Dr. Keegan Duchicela
Board Certified,
10 years in practice
16M people helped
Continue
107,000 doctors available
Read more answers from doctors