The present invention relates to a kind of devices, systems, and methods, for the subject for the monitoring dysphagia that detects and be in progress automatically, especially after apoplexy. The device includes that signal inputs to obtain the target voice that signal shows chewing chewing object audio signal expression generation, show to swallow the theme with signal is swallowed, signal processor is used to detect the signal from the chewing chewing abnormal conditions, abnormal conditions chewing is swallowed, signal is swallowed from the signal and the chewing, from the audio signal and described signal is swallowed with inspiratory event, it a kind of dyscatabrosis detector for detecting progression of the disease and/or is swallowed from chewing and detects exception, then event is chewed and swallowed to abnormal sucking generate the project that dyscatabrosis signal shows information about dysphagia, with the signal for exporting the dyscatabrosis output.