The clinical manifestations of iron deficiency anemia include symptoms caused by ischemia-induced tissue and organ hypoxia, as well as specific clinical signs associated with iron deficiency. Common clinical manifestations of iron deficiency anemia often include dizziness, headache, fatigue, easy tiring, memory decline, shortness of breath and palpitations after activities, and even symptoms such as tinnitus and blurred vision. Specific signs of iron deficiency include stomatitis, glossitis, atrophic gastritis, dry skin, brittle and falling hair, flat or spoon-shaped nails that are thin and prone to cracking. Some patients may also experience pica and difficulty swallowing, all of which are clinical manifestations of iron deficiency anemia.