Can iron deficiency anemia be a symptom of another problem?

Yes: There can be many reasons for iron deficiency anemia. It is best to have an evaluation by a physician for possible causes.

Certainly: It is a symptom of low iron, the question then would be why is the iron level low. The other problem could relate to diet, absorption, chronic blood loss, etc.

Yes, absolutely: Iron deficiency anemia can result from chronic blood loss in the body. The source must be found and treated. It can be an occult tumor in the colon, or excessive menstrual bleeding too. Poor diet or absorption can be responsible too. Other possible sources as well.

Iron deficiency: Iron deficiency can result from either blood loss or inadequate dietary intake. Blood loss in young women is typically due to heavy and/or frequent menses. In older adults, iron deficiency is worrisome for colon cancer or bleeding ulcers. Vegans & vegetarians are at greater risk for inadequate iron consumption as it's typically derived from animal protein. However, excess iron is not good either.