Iron deficiency, which gives rise to microcytic anemia, is common in women of reproductive age because of menstrual blood loss and in children with a poor diet. During pregnancy, women have greatly increased iron needs. Low serum ferritin is indicative of iron deficiency. Dermatitis can be seen in pellagra (niacin deficiency). A goiter results from iodine deficiency, but this is a rare occurrence today because of newborn testing and widely available foods with iodine. Peripheral neuropathy is more characteristic of beriberi (thiamine deficiency) and deficiencies in riboflavin (vitamin B2 ) and pyridoxine (vitamin B6 ). Bowing of the long bones and epiphyseal widening can be seen in rickets (vitamin D deficiency). Soft tissue hemorrhages can be seen in scurvy (vitamin C deficiency).