Anemia can result from various causes, including nutritional deficiencies (such as iron, vitamin B12, or folate), chronic diseases, genetic conditions, or blood loss. Symptoms often include fatigue, weakness, pale skin, shortness of breath, and dizziness. The condition can range from mild to severe and may require different treatments depending on the underlying cause. Dietary changes, supplementation, or addressing the root issue (like treating blood loss or an underlying illness) are common approaches to managing anemia.