Hello, welcome to health care magic. I am Dr Alok Sinha, MD Psychiatry from India. I will try my best to answer your query.
Hyper-sexuality is a known
sexual disorder. In this illness the person has increased desire for sex.
This illness can be broadly divided into two categories:-
1. Due to underlying pathology of brain/hormones
2. Due to mental and behavioural illness
In first category of illnesses there is underlying brain pathology or
hormonal dysfunction like
-
brain tumor at
frontal lobe (which causes loss of social inhibition and indulging in sexual act anytime anywhere without concern for others)
- or epileptic focus at limbic lobe of brain causing unexpected electrical discharges at brain and thus triggering sexual behaviour at random suddenly (but it is generally self gratifying).
- or
increased testosterone level (hormone responsible for increased sexual desire in male) due to testosterone secreting tumors (intense sexual desire).
In second category of illness the sexual desire is increased as a symptom of mental illness, like:-
- Manic Episode:- there is increased libido and energy, and a person can demand sex repeatedly from partner and may indulge in sexual activity many times in a day even with others.
- Impulse control disorder:- there is repeated urges to indulge in sexual activity, although the person himself/herself knows that his impulse should be prohibited, but he is compelled to do his act and repeatedly indulge in sexual activity (bisexual, homosexual, or self gratifying
masturbation).
As you told that your ex-boyfriend is otherwise healthy and knows that his desires are demanding and needs to be controlled, there is more likely a hormonal issue or a impulse control disorder. However with limited information it is difficult to say.
I advise to
consult a psychiatrist who may evaluate him in detail before treating the illness. It can be controlled with some psychotropic medicines and results may be rewarding for better relationship.
I wish you both all the best.