The child was a male, 3 months old. The child’s mother had a history of iron deficiency anemia, and the child failed the hearing screening test in both ears at birth in late November 2013. 80 dB, left ear V-wave hearing threshold >85 dB, and acoustic conductance test showed that the binaural tympanic curve was type A, and the stapedius muscle reflex was not elicited. Clinical blood and biochemical laboratory tests: Hb110.0g/L, erythrocytes 3.11×10*12/L, serum ferritin 45.3ug/L, serum iron 9.97umol/L. The diagnosis of iron deficiency deafness was confirmed. The child’s hearing improved significantly after 2 months of treatment with a combination of Chinese and Western medicine and iron therapy, and the otoacoustic emission was normal on the bilateral DPOAE after 7 months (Figure 3 and 4). The clinical blood and biochemical laboratory tests: Hb133g/L, serum ferritin 194.14ug/L, serum iron 17.5umol/L, were significantly higher than the values measured before treatment, and reached or approached the average level of healthy people with normal hearing. At 1 year follow-up, the child’s hearing was normal and his speech communication ability was normal. Figure 1 The DPOAE of the right ear was not elicited before treatment (erratum: the figure “Date of birth” should be: 2013-11-23) Figure 2 The DPOAE of the left ear was not elicited before treatment (erratum: the figure “Date of birth” should be: 2013-11-23) Figure 3 The DPOAE of the left ear was normal after 7 months of treatment Figure 4 The DPOAE of the right ear was normal after 7 months of treatment