Lymphocyte share Lymphocytes (%)
The share of your white cells that remember past infections.
Also printed asLymphocyte Percentage · Lymphocytes % · Lymphocyte % · Lymph %
What it measures
The share of your white cells that are the specialist, memory-carrying immune cells.
Being a share, a high percentage can simply mean neutrophils fell; read the absolute count beside it.
Why it matters for how long you stay well
These are the cells that stop infections met years ago from troubling you again, and their count drifting down over the decades is one of the quieter signs of ageing immunity.
How it shows up in daily life
This share rises during many viral illnesses and falls during physical stress, so it moves with what your week has been like.
High and low readings
When it reads high
Often a viral illness, or simply a low neutrophil share.
When it reads low
Can follow stress, steroids or a recent infection.
What moves it
Daily life
- viral illness
- stress
- sleep
- very hard training loads
Medicines known to shift it
- steroids (lower it)
Listed so a result can be read in context. It is not advice to start, stop or change any medicine; that decision belongs with your physician.
Read it with
Markers that move this one, or that this one moves. One number read alone can mislead.
- Neutrophil–lymphocyte balanceObserved association
As this rises, Neutrophil–lymphocyte balance falls as it rises
Stress and acute illness push first responders up and memory cells down at the same time. Both changes widen the balance, which is why one hard week can move it.
- Lymphocyte countKnown mechanism
As this rises, Lymphocyte count rises with it
The same arithmetic applies here. A high lymphocyte share on a low total is a very different picture from the same share on a normal total.
Common questions
What does Lymphocytes (%) measure?
The share of your white cells that are the specialist, memory-carrying immune cells. Being a share, a high percentage can simply mean neutrophils fell; read the absolute count beside it.
What does a high Lymphocyte share result usually mean?
Often a viral illness, or simply a low neutrophil share.
What does a low Lymphocyte share result usually mean?
Can follow stress, steroids or a recent infection.
What is the usual reference range for Lymphocyte share?
A broad adult reference band is 20–40 %. Labs differ, so read your result against the band printed on your own report.
Educational only, not a diagnosis. A single number means little without your history and the rest of your panel, so discuss your own results with your physician.
Typical adult reference band
- Adults
- 20–40 %
Labs differ. The band printed on your own report is the one that applies to your result.
Reported in %
Ageing relevance
5/5
A direct input to a validated biological-age algorithm.
One of the nine blood inputs to the PhenoAge biological-age clock (Levine et al., Aging, 2018).
Worth knowing
These are the cells vaccines train, and some of them remember an infection for decades.
Have a report with this marker on it? Read it in context.
Upload it to Oraia, our health-intelligence tool, for a plain-language read of your markers that a Genoryx doctor can review.
Your biological age is a number you can measure.
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