Glucose-6-phosphate dehydrogenase (G6PD) deficiency is one of the most common inherited enzyme disorders worldwide, particularly prevalent across India, the Mediterranean, and parts of Africa — regions where the trait has historically offered some protection against malaria. The G6PD enzyme protects red blood cells from oxidative damage; when it is deficient, exposure to certain triggers can cause red blood cells to break down suddenly (haemolysis), producing fatigue, jaundice, and dark urine, occasionally severe enough to require hospital care. This article covers what G6PD deficiency is, how it presents, and how it is diagnosed and managed generally; for detailed Indian dietary and trigger-avoidance guidance, see our companion diet guide, which this article deliberately does not repeat.
What G6PD Deficiency Is
G6PD deficiency is an X-linked genetic condition, meaning it affects males more often and more severely, though female carriers can also have clinically significant deficiency depending on X-chromosome inactivation patterns. The G6PD enzyme is part of red blood cells' defence against oxidative stress; without adequate enzyme activity, red cells are vulnerable to premature breakdown when exposed to specific oxidant triggers — certain foods (most classically fava beans), particular medications, and even some infections. Between episodes, most people with G6PD deficiency have no symptoms at all and are entirely unaware of the condition until a trigger exposure or a screening blood test reveals it.
Symptoms of a Haemolytic Episode
A haemolytic episode typically develops within hours to a few days of trigger exposure, producing fatigue, pale skin, yellowing of the skin and eyes (jaundice), dark or tea-coloured urine from haemoglobin breakdown products, and sometimes a rapid heart rate or shortness of breath in more significant episodes. In newborns, G6PD deficiency can cause pronounced neonatal jaundice requiring closer monitoring and, in some cases, phototherapy — this is one reason G6PD screening is recommended in some regions as part of newborn care. Severity varies considerably between individuals and between the specific G6PD gene variant involved.
Diagnosis and General Management
Diagnosis is confirmed with a blood test measuring G6PD enzyme activity, ideally performed when the patient is not in the middle of an acute haemolytic episode, since enzyme levels can appear temporarily higher during active haemolysis due to young red cells with relatively higher enzyme content. There is no cure for G6PD deficiency — it is a lifelong genetic trait — but with consistent trigger avoidance, the overwhelming majority of people live entirely normal, healthy lives with no functional limitation. Severe acute haemolytic episodes occasionally require hospital admission, intravenous fluids, and in rare significant cases, blood transfusion; these situations need prompt medical attention rather than home management.
Where Constitutional Homeopathy Fits
Constitutional homeopathy does not correct the underlying enzyme deficiency and is not presented here as doing so. Between episodes, it may be considered as general supportive care for overall energy, resilience, and wellbeing, much as it would be for anyone managing a chronic health consideration — but trigger avoidance (covered in detail in our dedicated diet and medication guide) remains the essential, non-negotiable core of managing G6PD deficiency day to day. Anyone with confirmed G6PD deficiency should ensure every treating doctor, dentist, and pharmacist is informed of the diagnosis before starting new medications.
Key Points at a Glance
G6PD deficiency is an inherited enzyme disorder, more common and more severe in males, prevalent across India and other malaria-endemic regions
Between episodes, most people have no symptoms at all — a haemolytic episode follows exposure to specific food, medication, or infection triggers
Symptoms include fatigue, jaundice, and dark urine; severe episodes need hospital care, and newborn jaundice may need monitoring or phototherapy
There is no cure — but consistent trigger avoidance allows the great majority of people to live entirely normal lives
Homeopathy offers general supportive care between episodes only; it does not correct the enzyme deficiency, and trigger avoidance remains essential
Managing G6PD deficiency and looking for general wellness support?
Dr. Meera Thakur offers constitutional homeopathic support for overall resilience and general health at HealthKunj Clinics, Kharadi, Pune, alongside the trigger-avoidance guidance from your treating physician.
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Dr. Meera Thakur
BHMS · HealthKunj Clinics, Kharadi, Pune· Published 22 Aug 2026
Dr. Meera has 15+ years of experience in individualised homeopathic practice with a special interest in women's hormonal health, skin disorders, and paediatric care.
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