Stages of G6PD Deficiency

G6PD deficiency is not a progressive disease. It does not get worse over time by itself. Instead, it moves between a quiet state and episodes of red blood cell breakdown.

Stage 1: Silent (baseline)

You have the deficiency from birth. Red cells work normally in daily life. Blood counts are usually normal. Most people stay in this stage for most of their lives.

Stage 2: Trigger exposure

A trigger puts extra oxidative stress on red cells. Common triggers include certain medicines, fava beans, infections and naphthalene.

Stage 3: Acute haemolysis (usually 1 to 3 days after the trigger)

Red cells break down quickly. Symptoms include jaundice, dark urine, tiredness, pallor, breathlessness and a fast heartbeat. Severity depends on the variant and the dose of trigger. This stage can be dangerous in severe cases.

Stage 4: Recovery

Once the trigger is stopped, the body makes new red cells. These younger cells have more enzyme, so haemolysis often settles on its own within days to a few weeks. Blood counts return to normal.

Stage 5: Back to baseline

You return to being well, but you still have the deficiency and the same triggers still matter.

Special situations

• Newborns: jaundice can appear in the first days of life, even without an obvious trigger.
• Chronic haemolysis: a rare form with ongoing anaemia.

Testing tip

Enzyme tests can look falsely normal during or soon after haemolysis, because young cells have higher enzyme levels. Doctors may repeat the test after recovery.

Ayurvedic framing

Ayurveda describes stages of imbalance, but has no match for this enzyme condition. This is an interpretive idea only.