I agree with you man of God this question is vague. However, I will answer based on the following assumption; you are refering single person(non-married) masturbating.
Is masturbation hamful?
Is it a sin?
No. In itself it is not a sin. [Pastor Chris]
Is it wrong?
No. God is not offended by it. [Pastor Chris]
When does it become a sin / wrong?
If there is no lustful thoughts and any form of pornography involved than it is not wrong/sin.
I suggest you listen more to Pastor Chris teachings.
"1 Accept the one whose faith is weak, without quarreling over disputable matters.
2 One person’s faith allows them to eat anything, but another, whose faith is weak, eats only vegetables.
3 The one who eats everything must not treat with contempt the one who does not, and the one who does not eat everything must not judge the one who does, for God has accepted them." - [Romans 14:1-3, NIV]
I wonder what else one will be imagining if we know the defination of masturbation.It is caused by not guiding your heart with all diligence and most times it is demonic. In my local assembly, CC1 PORT HARCOURT ZONE, Pastor Joy during minisration gives word of knowlege and cast out the the demons/spirits responsible for masturbation and the people are set free. It is like homo or lesby. If you are suffering from such oppression meet your pastor for counselling and prayers . Don't be shy about it
mighty one,lets not make simple matters complicated,when Pastor was addresing a question about masturbation,it was not about how harmfull it can be but the question was is it wrong..we all know what masturbation can do to people so we cant make any justifications to it,thats from the devil so masturbation is harmful,period!!!
and i do listen and watch pastors's messages!!!God bless u!!