In Jainism, masturbation is generally not considered in line with brahmacharya (celibacy/self-restraint), because Jain ethics place strong emphasis on control of the senses, reduction of passion, and non-attachment.

In simple terms:

• For monks and nuns: it is not permitted.
• For lay Jains (householders): it is still discouraged, because it strengthens desire and attachment rather than restraint.

Jainism judges actions mainly by whether they increase passions such as lust, anger, and attachment. Since masturbation is connected with sexual desire, it is usually seen as contrary to the spirit of Jain discipline.

Jain principle behind this

The goal is not only external restraint, but also inner purity and mastery over the self. So the emphasis is on:

• self-control,
• avoiding indulgence,
• and gradually reducing worldly passions.

If you want, I can also explain the Jain view of brahmacharya for householders vs monks in a simple way.