Iron deficiency anemia is a type of anemia that exhibits common symptoms found in all anemia patients. It is characterized by a range of clinical symptoms caused by oxygen deficiency in tissue organs due to a lack of blood in the body. Common symptoms include dizziness, headaches, fatigue, shortness of breath and palpitations after activity, easy fatigability, difficulty concentrating, and decreased memory. Some patients may also experience blurred vision, ringing in the ears, and in severe cases, fainting, transient darkening of vision, and even arrhythmias. Because iron deficiency anemia is also accompanied by iron deficiency, it presents a range of clinical symptoms specific to iron deficiency, including pica, angular cheilitis, glossitis, unusual tongue conditions, decreased appetite, and even constipation among other symptoms.