What is the ruling on intentionally ejaculating twice a week—based on a doctor's advice that not ejaculating causes pain and inflammation in the testicles—after it was previously only expelled through nocturnal emission twice a month?

The basic ruling regarding masturbation is that it is forbidden. However, it is permissible in cases of pressing necessity, such as the fear of committing fornication or contracting an illness due to the retention of semen. This permission is granted only to the extent necessary to avert the harm. This is the view held by Ahmad and others.