Abdul Mannan/LinkedIn

Jul 9, 2026, 05:49

Abdul Mannan: A Low Platelet Count is not Always a Bone Marrow Problem

Abdul Mannan, Consultant Haematologist at Betsi Cadwaladr University Health Board, shared a post on LinkedIn:

“A low platelet count is not always a bone marrow problem.

Sometimes it is the first sign of a cirrhotic liver, and the clue is sitting in an FBC you ordered for something else.

A new JAMA review on alcohol-related liver disease is a useful nudge for haematologists.

Here’s what you need to know:

FIB-4, a first-line fibrosis score, is built from four things you often already hold: ALT, AST, platelet count, and age.
A falling platelet count in a heavy drinker can reflect portal hypertension and splenic pooling, not primary thrombocytopenia.
A FIB-4 above 2.67 flags advanced disease. In US adults with heavy alcohol use and metabolic syndrome, that group grew from 3.0% to 10.8% between 1999 and 2018.
Fibrosis stage is the strongest predictor of outcome, and it responds to abstinence. Sustained abstinence more than halved liver-related mortality (adjusted HR 0.43).
Variceal bleeding, the bleed we get called about, is a late event. The platelet count often whispered the diagnosis years earlier.

Alcohol-related liver disease is now the leading cause of liver-related death (JAMA 2026).

When a heavy drinker turns up with isolated thrombocytopenia, how often does your team run a FIB-4 before starting a marrow workup?”

Abdul Mannan