Types of anaemia in pregnany: A single center study
This single-center cross-sectional study conducted at Holy Family Hospital Rawalpindi found that iron deficiency anemia is the most prevalent type of anemia in pregnancy (42%), followed by physiological anemia (40%), with lesser occurrences of Vitamin B12/folate deficiency and beta-thalassemia trait among the 45 pregnant women studied.
Original paper licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). This is an AI-generated explanation of the paper below. It is not written or endorsed by the authors. For technical accuracy, refer to the original paper. Read full disclaimer
Imagine your body is a bustling city, and the red blood cells are the delivery trucks ferrying oxygen to every neighborhood. Now, picture a pregnant woman's city: it's suddenly got a massive new construction project (the baby) and a brand-new highway system (the expanding blood volume). The city needs way more trucks to keep everything running smoothly. But sometimes, the delivery fleet gets short on fuel, breaks down, or just gets diluted by too much water in the system.
A team of researchers at Holy Family Hospital in Rawalpindi decided to investigate exactly what was happening to the delivery trucks in 45 pregnant women who had been flagged for having low "fuel" (hemoglobin levels below 12 g/dl). They ran the numbers between November 2024 and October 2025 to see which type of "truck trouble" was the most common.
Here is what they found in their city:
The Big Winner: The Iron Shortage
The most frequent problem was Iron Deficiency Anemia, affecting 19 patients (42%). Think of iron as the essential diesel fuel for the trucks. Without enough of it, the trucks (red blood cells) become small, pale, and weak. The study confirmed this by checking the "fuel reserves" (serum ferritin) and finding them low in these cases. It's the most common reason the delivery system slows down in this group.
The "Just Watered Down" Scenario
Next up was Physiological Anemia, found in 18 patients (40%). This isn't a breakdown; it's more like a traffic jam caused by too much water. During pregnancy, the body naturally adds a lot of extra fluid to the blood. Imagine pouring a huge bucket of water into a bucket of soup; the soup is still there, but it looks thinner and less concentrated. The trucks aren't necessarily more numerous; rather, the total volume of liquid has increased so much that the trucks are spread out more thinly, making the count look low. The study labeled this "dilution," a normal part of the pregnancy process.
The Missing Blueprints: B12 and Folate
Then there were the cases where the trucks were built wrong because the blueprints were missing.
- Vitamin B12 Deficiency: Found in 3 patients (6%).
- Folate Deficiency: Also found in 3 patients (6%).
These vitamins are the architects' instructions for building big, strong trucks. Without them, the trucks get oversized and clumsy (a condition called megaloblastic anemia). The researchers checked the "architect's logs" (serum B12 and folate levels) to confirm these cases.
The Rare Suspects
The researchers also looked for some other troublemakers but didn't find them in this specific group:
- Thalassemia Trait: Only 2 patients (4%) had this genetic quirk, where the trucks are built with a slightly different, smaller design.
- Autoimmune Hemolytic Anemia: The study explicitly found zero cases of this. This is a scenario where the city's security guards (the immune system) mistakenly attack and destroy the delivery trucks. The researchers ran a specific test (the Coombs test) to look for this, and the result was a clean sweep: no attackers found.
The Numbers on the Dashboard
The average age of the women in the study was 28.4 ± 5.5 years. When they looked at the average stats for the whole group, the hemoglobin (the oxygen-carrying capacity) was 9.8 ± 1.2 g/dl. The average size of the red blood cells (MCV) was 78.9 ± 9.2, and the average fuel reserve (ferritin) was 32.9 ± 47.2.
The Takeaway
The researchers suggest that while the "watered down" effect is common, the biggest culprit for actual trouble is the lack of iron. They argue that if doctors catch these shortages early—by checking the fuel levels and blueprint logs—they can fix the problem before it causes bigger headaches for both the mom and the baby. It's not a solved mystery for the whole world, but for this specific group of 45 women, the map is clear: check the iron first, then check the water, and keep an eye out for the missing blueprints.
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