<prompt> A 68 years old lady thinks that she has done a sin, she is not worth to live this world, she is also having anorexia and insomnia, she is suffering from -Exogenous depressionEndogenous depressionNeurotic depressionDissociate disorder  <response>: Diagnostic criteria for Major depression Five or more of the following symptoms for at least 2 weeks.Depressed moodLoss of interest or pleasure in all Decreased or increased appetiteInsomnia or hypersomniaPsychomotor retardation or agitationFatigue or loss of energyFeeling of worthlessness or excessive guiltDiminished concentrationSuicidal thoughts or attemptsDiagnosis of Minor depressionIf less than five but more than two i.e. 2-4 of the above symptoms are present for at least 2 weeks then the diagnosis is minor depression.Coming to questionThis patient has:-i Excessive guilt she has done a sinii Suicidal thoughts not worth to live this world iii Anorexia decreased appetite iv InsomniaSo, this patient has less than 5 symptoms but more than 2 symptoms but more than 2 symptoms Diagnosis is minor depression.Now the question arises, which type of depression is it?Endogenous depression :- No external precipitating event or stressors.Reactive neuroticexogenous :- Precipitated by external events or stressors, e.g. loss of a loved one, failure in love etc.As no external precipitating factor has been mentioned in the question, this patient is having endogenous depression.So, the final diagnosis is endogenous minor depression. If the symptoms would have been 5 or more -- endogenous major depression. 