okay if you all dont believe weed can affect you your very stupid.. tell me how could a drug not harm you?? i quit weed then my testicles would hurt then when i smoked they would hurt more and weigh more.. i think i have epididymitis because i have all the stuff that comes with it, not all but alot like frequent pissing pain when shitting and ejaculation.. now when i smoke weed that makes my nut hurt and weigh more.. i have had an ultrasound and they found nothing thats why i believe its this. if it was cancer from smoking WEED, they wouldve found it right. so im going in today telling my doctor all of this to see what he thinks and im going to get another ultrasound done too see if it is caner.. SO for all you people that are stupid, YES smoking weed will harm you just alot of people are lucky or dont smoke weed that much. IF your going to smoke dont do it often and ull be fine, if your like i use to be and smoke a ho in a night with one buddy and smoke everyday non stop. slow down before you cant smoke anymore at all.. i wish i could have the odd puff but guess what? when i smoke weed my testicle hurts and weighs a ton, hope this helps people or there future with weed smoking. wish i wouldve known trust me...