Bilkul bhee nahi! Hasthmethun se koi sambandh nahi hai kyunki Yeh ek safe /surakshit tareeka hai apni santushti karne ka. Isse koi nuksaan ya beemari nahin hoti. http://lovematters.in/hi/resource/men-masturbating Aur Ling ke size ki sahi jaankari yahan se hasil karo aap http://lovematters.in/en/resource/penis-shapes-and-sizes