ALT came back 68 at my checkup and I barely drink. GP says "recheck in three months" and nothing else. What is three months of waiting actually for?

First proper checkup at 32 because work started paying for one, and I'm now regretting it slightly.

Everything came back boring apart from the liver bit. ALT 68, with the lab range topping out at 41 or 50 depending on which line of the printout I believe. AST was normal, everything else on the liver panel normal, and the doctor's entire response was "mildly raised, recheck in three months, cut down on alcohol". I have maybe three or four beers a WEEK. I told her that. She sort of nodded.

So I've got three months of not knowing whether my liver is fine, and a number that the internet has been very keen to connect to cirrhosis, hepatitis, and several things I can't spell. I'm 32, I'm a bit heavy (BMI is 29 if I'm being honest with myself), I lift four times a week, and I had a stinking cold the week before the test if that matters.

What I'd actually like to know: is 68 "mildly raised" or is she being kind? What are they waiting for three months to see? And if it comes back the same, is that when it becomes a Problem or is that still nothing? I'm not going to lie, I'd rather have been told nothing at all than told this.

Been there, different number. Mine was 74 at 54 with the same "we'll repeat it" and I spent the wait convinced I was yellow. It came back at 39 and nobody ever mentioned it again.

Two things I'd say. One, if you lift four times a week, ask the doctor about that specifically. I've since read that heavy training can push ALT up on its own because it leaks out of muscle as well as liver, and I was doing a lot of hill work that spring. Two, "cut down on alcohol" is the default line they say to everyone with a raised liver enzyme, it doesn't mean she thinks you're a drinker. Mine got it too and I'd been off it entirely for Lent.

The cold might be more relevant than the beer. I had a viral thing in January that pushed my ALT to the low sixties on a blood test I happened to have the same fortnight, and the repeat six weeks later was normal. Viral infections can nudge liver enzymes for a bit. So can a lot of ordinary medicines, if you were taking anything for the cold.

The bit I'd gently flag is the BMI, not because 29 is dramatic but because "fatty liver" is by a mile the most common reason a mildly raised ALT sticks around in someone who doesn't drink much, and it's silent. That isn't a scare, it's the opposite: it's the version where the fix is boring.

Callum, the direct answer: 68 is genuinely mild by the usual definition, the three months is a deliberate design choice rather than a shrug, and an unchanged repeat is not the moment it becomes a "Problem". It is the moment it becomes worth explaining.

On "mild". Most laboratories set the upper reference limit for ALT somewhere between about 30 and 50 U/L, and it differs by lab and by sex, which is why your printout seems to disagree with itself. Clinicians commonly describe anything up to about two or three times that limit as mildly raised. At 68 you are around one and a half times the upper limit with a normal AST, normal bilirubin, and normal albumin, and that pattern, an isolated modest ALT rise with everything else quiet, is one of the most common findings a screening panel produces in an adult who feels well.

On why three months. A single ALT is a snapshot, and it is moved by things that resolve on their own: a recent viral illness, a course of common medicines, a hard training block (ALT and AST both leak from muscle, and lifting counts), or a weekend that was heavier than usual. The repeat is there to find out whether the rise was one of those or whether it persists. A persistent rise is what shifts the question from "was that a blip" to "what is the cause", and both answers are useful. The site's guide to what kidney and liver panels actually show sets out why these are pattern tests rather than single-number verdicts, and this is a worked example of it.

On what happens if it is still raised. The likely next steps are not dramatic: a fuller history covering alcohol, medicines, supplements, and family history; a small set of extra bloods, commonly hepatitis B and C serology, iron studies, and a few others; and often an ultrasound of the liver. Gregor is right that in someone your age and build, fat in the liver (the condition now generally termed metabolic dysfunction-associated steatotic liver disease, MASLD, formerly NAFLD) is the most frequent explanation for a rise that persists, and it is common enough that estimates put it in a substantial minority of adults worldwide. Where that is the cause, clinicians increasingly use simple risk scores built from routine bloods and age to decide whether any further assessment of liver stiffness is needed, and most people with an isolated mild rise sit in the low-risk band.

Two caveats. I cannot tell you what your particular number means; that is for the clinician who ordered it, with your full history. And if you develop symptoms before the recheck, such as yellowing of the skin or eyes, dark urine, or pain under the right ribs, that is a reason to be seen sooner rather than a reason to wait for the appointment. Absent those, the wait is the test.

Dr Aaron Vandermeer, MD said:

the wait is the test

That reframes it, thank you. I'd been reading the three months as "we'll see if it gets worse" and it's more "we'll see if it was real". Different feeling entirely.

Booked the repeat for early September. Will report back so the thread has an ending, because half the ones I read while panicking didn't.

Small practical thing from someone who did this twice: don't do a heavy leg session in the two or three days before the repeat draw, and mention to the phlebotomist or the doctor if you did. My second repeat was the "clean" one partly because I'd rested, and it saved a third round.

Ending, as promised.

Repeat in the first week of September: ALT 44. Just over the lab's line on one printout, just under it on the other, which I now understand is about as normal as normal gets. Rested from the gym for three days beforehand on Annika's advice and told the doctor so.

She went through it properly this time, I think because I turned up with questions instead of nodding. Her read: most likely the cold plus the training, with my weight as the thing to keep an eye on because it's the one that could make a number like that stick around later. No scan, no extra bloods, next liver panel whenever my next checkup is. She did the "cut down on alcohol" line again. I think it's reflex.

So: three months of quietly worrying about cirrhosis, ending in a number that would never have been mentioned if it had come back this way the first time. Worth it for the education, I suppose. I'd still rather they'd said "this is usually nothing, here's what we're checking for" on day one.