PROBLEM TO BE SOLVED: To provide a bathing apparatus which is, by enabling chemical solution injection regardless of hot water supply or additional hot water supply into a bathtub, excellent in convenience and capable of appropriate maintenance of chemical concentration in the hot water in the bathtub, and which does not enlarge the apparatus nor increase costs.SOLUTION: A bathing apparatus includes a chemical solution injection device 35 which injects chemical solution into a bathtub 4 and a control unit 40 which controls the chemical solution injection device 35. When detecting that the number of times of bathing or the bathing time in the bathtub 4 reaches a prescribed threshold, the control unit 40 permits chemical solution injection from the chemical solution injection device 35.COPYRIGHT: (C)2014,JPO&INPIT【課題】浴槽への給湯または増し湯に関係なく薬液注入を可能とすることで利便性に優れるとともに浴湯の薬液濃度を適切に維持管理でき、しかも装置が大型化せずコストアップにならない入浴装置を提供すること。【解決手段】浴槽4内に薬夜を注入する薬液注入装置35と、薬液注入装置35を制御する制御部40とを備え、制御部40は、浴槽4への入浴回数または入浴時間が所定閾値に達したことを検知した場合に、薬液注入装置35から薬液の注入を許可する。【選択図】図1