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Hereditary elliptocytosis: what oval red cells mean for you | CION Cancer Clinics
Hereditary elliptocytosis is an inherited condition where red blood cells are oval instead of round. Most people with it have no symptoms, a normal or near-normal haemoglobin, and need no treatment. A smaller group has red cells breaking down early, which can cause anaemia, jaundice and gallstones. A rare severe form needs regular care. This page explains the forms, the tests and what to ask your haematologist. At CION Cancer Clinics, our haematologist cares for anaemia, bleeding, clotting and inherited blood disorders, with ArogyaSri, CGHS and cashless insurance accepted.
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Medically reviewed by Dr. Basudev PokhrelConsultant Haematologist · last reviewed September 2026, next review due September 2027
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The short answer
What is hereditary elliptocytosis?
Hereditary elliptocytosis is an inherited condition where many red blood cells are oval or egg-shaped instead of round and flat. Most people who have it feel completely well and never need treatment.
Why the cells change shape
Every red cell has a flexible inner framework made of proteins. In hereditary elliptocytosis, a change in a gene weakens that framework. A normal cell stretches as it passes through tiny blood vessels and then springs back. These cells stretch and stay stretched, so they look oval under the microscope.
What that does to the body
In the common mild form, the oval cells still carry oxygen and live almost as long as normal cells. Blood counts are often normal. In a smaller group, the cells are fragile and the spleen removes them too early. That early breakdown, called haemolysis, can cause anaemia, which means a low haemoglobin, and yellow eyes.
How it is inherited
It usually passes from one parent to a child. A parent with no symptoms may carry it without knowing. If a child inherits a changed gene from both parents, the condition can be much more severe.
Oval cells on a report do not always mean this condition. Iron deficiency, thalassaemia and some marrow problems can also cause them.Not one condition
What forms can it take?
The name covers a range, from a finding on a smear to a condition that needs regular care. Knowing the form matters more than the name.
Common mild form
By far the most frequent. There are no symptoms, the haemoglobin is normal or close to it, and it is often found by chance on a routine test.
Usually needs
- No treatment
- A note in your medical records
With ongoing haemolysis
Red cells break down faster than normal. There may be tiredness, yellow eyes, a larger spleen or gallstones over time.
Hereditary pyropoikilocytosis
A rare, severe form, usually from changes inherited from both parents. Cells are very fragile and odd in shape. It often shows in infancy with marked anaemia and jaundice.
Southeast Asian ovalocytosis
A related type seen in some families of Southeast Asian origin. The cells are rigid and oval. Most people have little or no anaemia.
A newborn with this form may have jaundice that needs close watching.Not sure whether this applies to you?
Ask an oncologistFinding out
How is it usually found and confirmed?
A chance finding
Most often, a lab comments on oval cells in a routine blood count done for another reason, such as a health check, pregnancy or a fever. There may be no complaint at all.
Ruling out common causes
The haematologist checks iron levels and looks for thalassaemia, because these are far more common in India and also change red cell shape. They are treated differently.
Checking for breakdown
A reticulocyte count, bilirubin and LDH show whether red cells are being destroyed early. This separates the harmless form from the form that needs follow-up.
Family and special tests
A smear from a parent often shows the same cells. In unclear or severe cases, a genetic test or a specialised red cell membrane test may be arranged through a reference laboratory.
Side by side
How is it different from hereditary spherocytosis?
Hereditary elliptocytosis
Hereditary spherocytosis
Cells are oval or egg-shaped
Cells are small and round like balls
Most people have no symptoms
Anaemia and jaundice are more common
Treatment is rarely needed
Some people need folic acid, transfusion or spleen removal
Often found by chance on a smear
Often found because of symptoms or family history
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Living with it
Does it need treatment, and what can this page not tell you?
Most people with hereditary elliptocytosis need no treatment at all. If your blood count is normal and there is no sign of red cell breakdown, your haematologist will usually just explain it and ask you to mention it to future doctors.
When care is needed
If haemolysis is present, your haematologist may check your blood regularly and look for gallstones. A folic acid supplement may be suggested because the marrow works harder. A transfusion may be needed during a sudden fall in haemoglobin, often with a viral infection or in pregnancy. Never start or stop any medicine on your own.
Removing the spleen
For a severe form, removing the spleen can reduce red cell breakdown. It does not suit the mild form, and it is avoided in very young children, because life without a spleen carries a lifelong higher infection risk. If it is suggested, ask which centre will do it and which vaccines you need first.
What this page cannot tell you
It cannot tell you which form you or your child has. A smear alone does not answer that. Your own picture comes from your blood tests, family history and examination, read together by a haematologist.
Reference ranges differ between laboratories, and a single result is always read alongside symptoms and repeat tests.Commonly believed
What worries families that is not true?
"Abnormal cells in the report mean cancer."
Oval red cells are not cancer cells, and hereditary elliptocytosis does not turn into leukaemia. The word "abnormal" on a report only means the shape is unusual. If the report also mentions blasts or other unexplained changes, that is a separate question for your haematologist.
"My child will be weak all their life."
Most children with the common form grow, study and play like any other child. Only the less common severe forms need regular care.
"Iron tonics will correct the shape."
The shape comes from a gene, not from a shortage. Iron helps only if a separate iron deficiency is found, and extra iron without need can do harm.
"If a parent has no symptoms, the child cannot have it."
Parents often carry it silently. A simple smear on both parents can help explain a child's result.
Did you know
A few oval cells are seen in many healthy people's blood. Labs usually comment only when a large share of the cells are oval, which is why the same smear may be described differently by two laboratories.
Questions we are asked
Common questions about hereditary elliptocytosis
Is hereditary elliptocytosis serious?
For most people, no. The common form causes no symptoms and needs no treatment. A smaller group has ongoing red cell breakdown, and a rare severe form needs regular care from infancy. Your haematologist can tell which group you are in from your blood count, reticulocyte count and bilirubin, read together.
The report says elliptocytes. Should I be worried?
Not on that word alone. Oval cells appear in hereditary elliptocytosis, but also in iron deficiency, thalassaemia and some other conditions. Show the report to a doctor who can check your iron, haemoglobin and signs of red cell breakdown. That tells you whether it matters for you.
Can it cause jaundice in my newborn baby?
It can, especially in the more fragile forms. Newborns often have some yellow colour anyway. If your baby's colour is deepening, spreading to the legs, or the baby is feeding poorly or very sleepy, take the baby to a doctor the same day. Tell them the family has this condition.
Can I donate blood if I have it?
Rules differ between blood banks, and many will not accept donors with an inherited red cell condition. Tell the blood bank about your diagnosis before donating and follow their decision. Do not hide it, because the safety of the person receiving the blood also matters.
Will my children inherit it?
Each child of a parent with the condition has a chance of inheriting it. Most who do will have the mild form. If both parents carry a change, a child can have a severe form. A haematologist or genetic counsellor can explain your family's risk before or during pregnancy.
Do I need to avoid any foods or activities?
With the common form, no special diet or limits are needed. Eat a balanced diet and stay active. If you have ongoing red cell breakdown, your haematologist may give specific advice. Avoid herbal tonics that claim to fix the blood, and ask before starting any supplement.
Can it be mistaken for thalassaemia?
Yes, and the reverse also happens. Both are inherited and both can change cell shape. Thalassaemia is tested with a haemoglobin study, often called HPLC. Getting the right diagnosis matters for treatment and for marriage and pregnancy planning, so ask your doctor whether this test has been done.
Who should I see about this report?
A haematologist, a doctor who specialises in blood conditions. At CION, the haematology team reviews your reports, explains what they mean and plans any follow-up. Where special tests or surgery are needed, they coordinate with qualified centres. Bring every blood report you have, including your parents' if available.
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Sources
- MedlinePlus Genetics (US National Library of Medicine) — Hereditary elliptocytosis
- NHLBI — Hemolytic anemia
- American Society of Hematology — Anemia
- NHS — Spleen problems and spleen removal
This page is general information, not a prescription. Do not change or stop any treatment based on what you read here. If anything is worrying you, contact your own treating team — or call our helpline and we will help you reach the right specialist.
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Have a report that mentions oval cells?
Share it with CION's haematology team. We will read it with you and tell you whether it needs follow-up. One helpline serves every CION centre.