Thank you for your question. Masturbation is good for your sexual health and has no long term adverse effects on fertility or sexual wellbeing. If you are using sexual aids do make sure you do not insert anything into the urethra. This can damage the delicate tissue and cause infection. If you are using food items please use a condom so that there is no contact with the skin. Some times the residue from fruits or vegetables can cause irritation. You can read more about using sexual aids on wikipedia (sexuality portal). hope this helps