Self-pollution is a term used to describe activities or habits that cause harm to oneself, typically related to self-pleasure. However, using this term can have negative connotations and may not be appropriate in all situations. There are some alternative words and phrases that can be used instead, such as self-gratification, self-stimulation, or self-pleasuring. These terms are more neutral and less judgmental, making them better choices when discussing sensitive topics related to sexuality and personal habits. It's important to choose words carefully and thoughtfully to avoid stigmatizing or shaming individuals for their personal choices and behaviors.