Green-sickness, also known as chlorosis, is a condition commonly affecting young women during puberty. Symptoms include paleness, fatigue, weakness, and shortness of breath. However, there are synonyms to describe this illness which includes maiden disease, anemia, and iron-deficiency. Green-sickness was believed to be caused by an inadequate intake of iron-rich foods; however, it can also be caused by low levels of vitamin B12 or folic acid. In modern times, the term green-sickness is no longer used as such condition is medically recognized, diagnosed and treated properly. In conclusion, while green-sickness may have been a popular term in the past, medical advancements have provided us with more accurate synonyms for this condition.