Some clinicians may never be able to treat this condition due to other dominating psychopathologies present within the jealous person that call for more attention. Men and women differ dramatically when it comes to morbid jealousy. Men who suffer from morbid jealousy are more likely than women to use violence and also are more likely to harm or kill with their hands rather than a blunt object. Women on the other hand, when using violence, tend to use a blunt object or knife. Men focus on the rivals status and resources when it comes to the threat of jealousy they fear. Women tend to become more jealous of a potential threat on their rivals youth and physical attractiveness. Triggers
For men the strongest trigger is sexual infidelity and with women the strongest trigger is emotional infidelity. If partner-related violence does not stop infidelity from happening, the male mate will sometimes resort to suicide instead. The final resort to stopping infidelity inside of morbid jealousy is to commit partner murder. Women are much less likely to kill their partner, unless it is in self-defense. Morbid jealousy can occur in a number of conditions such as chronic alcoholism, addiction to substances other than alcohol (i.e. cocaine, amphetamines, marijuana. ), organic brain disorders (i.e. Parkinsons, Huntingtons), schizophrenia, neurosis, affective disturbances or personality disorders. Associated drug and alcohol use
Alcohol and drug misuse has a well-recognized association with morbid jealousy.
It has also been recorded by Cobb (1979) “that morbid jealousy may be present with all types of cerebral insult or injury.” "It has been suggested that morbid jealousy may potentially arise in response to reduced sexual function”. Cobb (1979) drew attention to the elderly man whose waning sexual powers were insufficient to satisfy a younger wife. Mullen (1990) considered morbid jealousy to be associated with four features:
An underlying mental disorder emerges before or with the jealousy
The features of the underlying disorder coexist with the jealousy
The course of morbid jealousy closely relates to that of the underlying disorder
The jealousy has no basis in reality

Personality
People who are very insecure, or even fearful, are more likely to become anxious, or question their partners commitment to them. “Insecure attachment style correlates strongly with borderline personality disorder” (Kingham and Gordon). Environmental
Some people even believe that someone who is morbidly jealous might suspect that he or she is being drugged or given some kind of substance that might decrease their sexual potency, or they might even be under the impression that their significant other has somehow received a sexually transmitted disease from another person while the subject is unaware. Epidemiology
There is no known prevalence of morbid jealousy; currently there is no community survey tracking its existence in individuals. As of late, it is considered to be a rare occurrence. Still, many counselors encounter cases of morbid jealousy.