Anemia in Indian Women: Causes Beyond Iron, Tests & Treatment

• Anemia means your blood carries less oxygen than it should, measured by hemoglobin (Hb). It is a symptom of something else, not a final answer.
• Iron deficiency is the most common cause in Indian women but far from the only one. B12 deficiency, folate deficiency, thalassemia trait, heavy periods, hookworm, and chronic illness all cause anemia.
• A serum ferritin and a complete blood count with red-cell indices (MCV) are the starting tests. Low ferritin confirms iron deficiency; a normal ferritin with small red cells points elsewhere.
• Thalassemia carriers look like iron deficiency on a basic count but should not be loaded with iron. The wrong treatment can cause harm, so the cause must be confirmed first.
• If iron tablets are not working after 4 to 8 weeks, that is a signal to investigate further, not to take more iron.
• Most testing and iron-folic acid treatment is free under the Anemia Mukt Bharat programme and at government health centres.

Anemia means your blood has too few healthy red blood cells, so it carries less oxygen around your body. Doctors measure it with the hemoglobin (Hb) level. The World Health Organization defines anemia as Hb below 12 g/dL in a non-pregnant adult woman, below 11 g/dL in pregnancy, and below 11 g/dL in children under five.

Severity is graded by Hb: mild (10 to 11.9 g/dL in non-pregnant women), moderate (7 to 9.9 g/dL), and severe (below 7 g/dL). Knowing the grade matters because moderate-to-severe anemia needs faster, more active treatment.

Common symptoms include tiredness that does not lift with rest, weakness, pale skin or inner eyelids, breathlessness on climbing stairs, palpitations, headache, dizziness, cold hands and feet, hair fall, brittle nails, and sometimes restless, fidgety legs at night (see restless legs syndrome in Indian women). A telling sign is pica, a craving to chew ice, clay, or chalk. Because tiredness and hair fall have many causes that overlap, it helps to understand how hair, weight, and mood are connected before assuming the cause.

Anemia is genuinely serious, not just an inconvenience. It contributes to a large share of maternal deaths in India, affects a child's growth and learning, lowers work capacity, and weakens the immune response. Treating it well changes how you feel and function day to day.

India carries one of the largest anemia burdens in the world. Per the National Family Health Survey (NFHS-5, 2019 to 2021), about 57% of women aged 15 to 49 are anemic, around 67% of children under five, roughly 31% of adolescent girls aged 15 to 19, and about 52% of pregnant women. Rates are higher in rural and lower-income communities.

Several Indian realities stack up: predominantly plant-based diets where iron and B12 are harder to absorb, heavy or prolonged periods, closely spaced pregnancies, hookworm in areas with poor sanitation, and a high carrier rate for inherited blood conditions in some communities.

The government's Anemia Mukt Bharat (AMB) programme, launched in 2018, provides free iron-folic acid supplements, deworming, and screening through Anganwadi centres, schools, and antenatal visits. It has helped, but a one-size iron approach misses people whose anemia comes from a different cause, which is exactly why a proper work-up matters.

Iron deficiency is the most common cause of anemia in Indian women, but treating every anemia as iron deficiency is a mistake. Here are the main causes a doctor weighs up.

Iron deficiency anemia. Caused by blood loss (periods, gut, pregnancy), low dietary intake, poor absorption, or higher demand in pregnancy and growth. Red cells are small and pale (microcytic, hypochromic) and serum ferritin is low, which is the definitive sign.

Vitamin B12 deficiency. Very common in strict vegetarians, because B12 comes only from animal products and fortified foods, and in older adults whose stomachs absorb it poorly. Red cells become large (macrocytic), and there can be tingling, numbness, balance problems, or memory changes. Read more in our guide to vitamin B12 deficiency in women.

Folate deficiency. From low intake of leafy greens and legumes, higher demand in pregnancy, alcohol use, or certain medicines. It also makes red cells large.

Thalassemia and other inherited hemoglobin disorders. Beta-thalassemia trait (carrier) is common in some Indian communities, including Sindhis, Punjabis, Bengalis, Gujaratis, and Marwaris. Carriers are usually well but have mild anemia with very small red cells, which is easily mistaken for iron deficiency. Sickle cell disease is common in central and eastern tribal belts (Maharashtra, Madhya Pradesh, Chhattisgarh, Odisha).

Anemia of chronic disease. Long-standing inflammation or illness, such as rheumatoid arthritis, Lupus (SLE) in Indian Women: Diagnosis, Treatment, Pregnancy, tuberculosis, chronic kidney disease, or cancer, traps iron and slows red-cell production.

Blood loss. Heavy periods are a leading cause in menstruating women, often from fibroids or hormonal imbalance. Gut bleeding from ulcers, polyps, or colorectal cancer is an important cause, especially after 40.

Hookworm and other parasites. Hookworm causes a slow, steady gut blood loss and is still common in rural areas with poor sanitation. Malaria and giardia can also cause anemia.

Hemolytic anemia. Red cells break down too fast, as in autoimmune hemolysis, G6PD deficiency, or hereditary spherocytosis. Aplastic anemia, where the marrow fails, is rare but serious.

The goal of testing is not just to confirm anemia but to find why it is there. A logical sequence avoids wasted tests and wrong treatment.

Step 1: Complete blood count (CBC) with red-cell indices (around Rs 200 to 500). The mean cell volume (MCV) sorts anemia into three useful groups. Small cells (MCV under 80 fL) suggest iron deficiency, thalassemia, or chronic disease. Normal-sized cells point to acute blood loss, hemolysis, or mixed deficiencies. Large cells (MCV over 100 fL) point to B12 or folate deficiency, an underactive thyroid, or alcohol.

Step 2: Serum ferritin (around Rs 400 to 1,000), the single most useful test. A low ferritin confirms iron deficiency. Important caveat: ferritin rises with any infection or inflammation, so a normal ferritin in someone who is unwell does not rule out iron deficiency. A peripheral blood smear (Rs 200 to 500) shows cell shapes that hint at thalassemia (target cells) or hemolysis.

Step 3: Targeted tests based on the picture. These may include vitamin B12 and folate levels, a hemoglobin electrophoresis or HPLC (Rs 1,000 to 4,500) when small red cells are not explained by iron, thyroid function (an underactive thyroid causes anemia), kidney and liver tests, inflammatory markers, and stool tests for occult blood or hookworm.

Step 4: Specialist tests when needed. Endoscopy or colonoscopy (Rs 3,000 to 15,000 each) is advised for unexplained iron deficiency, especially over 40 to 45, to look for a gut source. A bone marrow test is reserved for suspected marrow disease such as low counts across all cell lines. A Coombs test checks for autoimmune hemolysis.

Once iron deficiency is confirmed, oral iron is first-line for most people. Common options include ferrous sulfate (cheapest, and free at government health centres), ferrous ascorbate, ferrous fumarate, iron polymaltose complex, and amino-acid iron chelate. The usual dose provides 60 to 200 mg of elemental iron daily.

Absorption tips that make a real difference: take iron with a source of vitamin C such as lemon or amla, and keep it away from tea, coffee, milk, and calcium tablets, which all block absorption. Iron tablets are free at primary health centres under Anemia Mukt Bharat and very cheap at Jan Aushadhi pharmacies.

Side effects of nausea, constipation, dark stools, or a metallic taste are common and manageable. Taking iron with a little food, switching to a gentler formulation, or trying alternate-day dosing can all help. There is good evidence that alternate-day dosing can actually improve absorption while easing side effects.

Keep taking iron for 3 to 6 months after Hb returns to normal, so your body stores are fully refilled, not just the blood level. Recheck Hb at 4 to 8 weeks, where a rise of 1 to 2 g/dL confirms the treatment is working. If it is not rising, that is the cue to investigate other causes rather than simply increasing the dose.

Intravenous (IV) iron is used when tablets are not tolerated or not working, when anemia is severe, in chronic kidney disease, or in later pregnancy. A single high-dose ferric carboxymaltose infusion can correct stores in one sitting. IV iron is given at a clinic over 30 to 60 minutes and is generally well tolerated, with serious reactions being rare.

Vitamin B12 deficiency is common in Indian women who eat little or no animal food, in older adults, and in pregnancy. Diagnosis rests on a serum B12 level, with borderline results sometimes confirmed by methylmalonic acid and homocysteine. The neurological symptoms can become permanent if treatment is delayed, so do not ignore numbness, tingling, or balance problems.

Treatment is oral or injectable. High-dose oral B12 (1,000 to 2,000 mcg daily of cyanocobalamin or methylcobalamin) works for most people, even those with absorption problems, because a small fraction is absorbed passively at high doses. Injectable B12 is preferred when deficiency is severe, when there are nerve symptoms, or after stomach or bowel surgery. People with pernicious anemia or surgical absorption problems usually need B12 for life. Our B12 deficiency guide covers dosing and food sources in detail.

Folate deficiency is treated with oral folic acid, usually 1 to 5 mg daily for a few months. Women planning pregnancy should take folic acid beforehand to lower the risk of neural tube defects, with a higher 5 mg dose if there is a prior affected pregnancy, diabetes, obesity, or anti-epileptic medication.

When both B12 and folate are low, B12 should be corrected first or alongside folate. Giving folate alone can mask an ongoing B12 problem and let nerve damage progress quietly.

This is the cause most often missed, with real consequences. A beta-thalassemia carrier is usually healthy but has mild anemia with very small red cells, which looks just like iron deficiency on a basic count. The difference is that iron studies are normal and HbA2 is raised above 3.5% on hemoglobin electrophoresis, which is the diagnostic test.

Why it matters: a carrier given large iron doses without true iron deficiency gains nothing and risks iron overload. The simple rule is to check ferritin before loading iron. If ferritin is normal and small red cells persist, ask for an electrophoresis, particularly if there is a family history or you belong to a high-carrier community.

For carriers, the most important step is genetic counselling. If both partners are carriers, each pregnancy carries a 25% chance of beta-thalassemia major, a severe lifelong transfusion-dependent condition. Pre-marital and pre-pregnancy screening in high-prevalence communities, and prenatal testing for at-risk couples, can prevent this. Carriers themselves rarely need treatment beyond avoiding unnecessary iron.

Thalassemia major and sickle cell disease are managed by haematologists with regular transfusions, iron chelation to prevent overload, and in selected cases a potentially curative bone marrow transplant. Major Indian centres include AIIMS Delhi, Tata Memorial Mumbai, CMC Vellore, PGI Chandigarh, and the ICMR National Institute of Immunohaematology in Mumbai. The Thalassemia and Sickle Cell Society of India is a useful patient resource.

Heavy menstrual bleeding is the leading cause of iron deficiency in menstruating Indian women, and it is often normalised when it should not be. Suspect it if your period lasts more than seven days, you soak a pad every hour for several hours, you pass large clots, or your periods leave you exhausted. Common causes include uterine fibroids, polyps, adenomyosis, hormonal imbalance such as PCOS (see PCOS treatment options), thyroid problems, and bleeding disorders.

If your periods are heavy, treating the bleeding is as important as taking iron. Our full guide to heavy menstrual bleeding (menorrhagia) walks through the evaluation and the complete treatment ladder, from tranexamic acid and hormonal options like the Mirena IUS to procedures for fibroids.

Gut blood loss is an important and easily missed cause, especially without obvious heavy periods or in older women. Sources include peptic ulcers, gastritis, colon polyps, inflammatory bowel disease, and colorectal cancer. Unexplained iron deficiency over the age of 45 is a clear reason for endoscopy or colonoscopy.

Hookworm still affects many people in rural India, particularly those who walk barefoot or work in agriculture, and it causes slow gut bleeding. It is diagnosed on stool testing and treated with a single dose of albendazole 400 mg, which is free under school deworming programmes. Anemia improves with deworming plus iron. Footwear and better sanitation prevent reinfection.

Anemia of chronic disease, also called anemia of inflammation, is the second most common type worldwide. Long-standing inflammation raises a hormone called hepcidin, which locks iron away inside cells and blunts red-cell production. It is seen in rheumatoid arthritis, lupus, inflammatory bowel disease, chronic infections like tuberculosis, cancer, and kidney disease.

On tests, the red cells are usually normal-sized or only mildly small, iron is low or normal, but ferritin is normal or high because it rises with inflammation. The treatment is to control the underlying illness; iron is added only if true iron deficiency is confirmed, and IV iron often works better than tablets in this setting.

In chronic kidney disease, the kidneys make less erythropoietin, the hormone that drives red-cell production. Treatment combines iron repletion (often IV) with erythropoiesis-stimulating agents, aiming for a Hb of about 10 to 11.5 g/dL rather than higher, because over-correction raises clotting risk. Newer oral HIF stabilisers such as roxadustat are now available in India.

Less common causes include hemolytic anemias, where red cells break down too fast. G6PD deficiency, more frequent in some Indian communities, causes hemolysis after certain drugs, fava beans, or infections, so known triggers should be avoided. Autoimmune hemolysis, hereditary spherocytosis, aplastic anemia, and myelodysplastic syndromes are managed by haematologists.

About half of pregnant women in India are anemic. Pregnancy increases iron and folate demand sharply, and a small fall in Hb from blood dilution is normal. Severe anemia, however, raises the risk of preterm birth, low birth weight, and bleeding after delivery, and it contributes to maternal deaths.

Indian guidelines recommend daily iron-folic acid (60 mg elemental iron plus folic acid) through pregnancy and for six months afterwards, free under Anemia Mukt Bharat at antenatal visits. Women planning pregnancy should start folic acid beforehand. The first antenatal visit should include a CBC and, where possible, ferritin, B12, and folate.

Moderate to severe pregnancy anemia, or intolerance to tablets, is treated with IV iron, which is safe in the second and third trimesters, and rarely with transfusion when anemia is severe near delivery. Thalassemia carriers should not be over-iron loaded without confirmed deficiency. For a pregnancy-specific deep dive, see our guide to anemia in pregnancy.

Anemia after delivery is very common because of blood loss at birth on top of pregnancy anemia. Continue iron for 3 to 6 months, consider IV iron for significant postpartum anemia, and watch for low mood, as fatigue and postpartum depression often feed each other.

Mild anemia found on a routine test can usually be discussed at your next GP visit. Some signs, though, need prompt or urgent attention.

See a doctor soon if you have ongoing fatigue, breathlessness on mild exertion, palpitations, dizziness, or pale skin, especially with heavy periods. Also seek review if iron tablets have not improved your Hb after 4 to 8 weeks, if you crave non-food items like ice or clay, or if anemia keeps coming back.

Testing is affordable and often free. A CBC costs around Rs 200 to 500, ferritin Rs 400 to 1,000, B12 Rs 500 to 1,200, folate Rs 400 to 1,000, and hemoglobin electrophoresis Rs 1,000 to 3,000. A broad anemia panel is typically Rs 2,000 to 5,000. Endoscopy or colonoscopy runs Rs 3,000 to 15,000 each.

Treatment is cheap for most causes. Oral iron is Rs 50 to 500 a month and free at government centres; oral B12 is Rs 100 to 400; folic acid Rs 30 to 150; deworming Rs 30 to 100 and free at primary health centres. IV iron sucrose is Rs 800 to 2,500 per dose and ferric carboxymaltose Rs 3,000 to 8,000 for a single infusion.

Government support is substantial. Anemia Mukt Bharat provides free iron-folic acid and deworming through Anganwadi centres, schools, and antenatal care. Ayushman Bharat PMJAY covers diagnosis and treatment, including IV iron and transfusion, at empanelled hospitals for eligible families. CGHS, ECHS, and ESI cover their beneficiaries, and Jan Aushadhi pharmacies sell these medicines at a deep discount.

Most anemia can be managed by a GP. Ask for a haematology referral for severe or refractory anemia, suspected thalassemia or hemolysis, low counts across all cell lines, or kidney-related anemia. See a gynaecologist for heavy periods and a gastroenterologist for suspected gut bleeding. Leading haematology centres include AIIMS Delhi, Tata Memorial Mumbai, PGI Chandigarh, CMC Vellore, and JIPMER.

• WHO — Haemoglobin concentrations for the diagnosis of anaemia and assessment of severity
• WHO — Anaemia (fact sheet)
• Anemia Mukt Bharat — Ministry of Health & Family Welfare, Government of India
• National Family Health Survey (NFHS-5), India — IIPS / MoHFW
• ICMR National Institute of Immunohaematology — Hemoglobinopathies in India
• NHS — Iron deficiency anaemia