Which symptoms may indicate iron deficiency anemia?
Among the various causes of anemia, iron deficiency anemia—also known as nutritional anemia—is the most common. When dietary iron intake is insufficient, hemoglobin synthesis is impaired, leading to a marked reduction in hemoglobin content within red blood cells and, consequently, a decrease in red blood cell count. So, what signs and symptoms may indicate iron deficiency anemia? The following section addresses this question.

Signs and Symptoms Suggestive of Iron Deficiency Anemia
Iron is the most abundant trace element in the human body and serves as a critical component of hemoglobin, myoglobin, and cytochromes. It also forms the catalytic core of numerous enzymes, including those involved in energy metabolism (e.g., various dehydrogenases), cytochrome enzymes, peroxidases, and catalases. Iron deficiency anemia—commonly referred to as “benign anemia”—typically presents with the following symptoms, which individuals may self-assess:
1. Common manifestations include fatigue, dizziness, visual disturbances (e.g., blurred or “spotty” vision), tinnitus, headache, insomnia, and impaired memory.
2. Pallor may be pronounced—appearing almost paper-white—particularly in the skin and nail beds; nails may become flattened (koilonychia) or brittle and develop ridges or cracks.
3. Skin may become dry and scaly; hair may become brittle and prone to excessive shedding.
4. Gastrointestinal symptoms may include decreased appetite, indigestion, nausea, vomiting, abdominal distension, and diarrhea.
5. Physical examination may reveal cardiac enlargement. In women, edema and menstrual irregularities (e.g., menorrhagia or amenorrhea) may occur. Severe cases may present with atrophic glossitis, dysphagia, a sensation of a foreign body in the pharynx, or angular cheilitis.
6. Laboratory testing reveals hemoglobin levels below 120 g/L in adult males, below 110 g/L in adult females, and below 100 g/L in pregnant women.
The above outlines the key clinical features suggestive of iron deficiency anemia. We hope this information proves helpful.