Our expert says:
I am not sure if when you say "not having sex for a long time" means only not having ses with a partner, yet masturbation continues or whether you mean no sexual release at all with neither a partner or through self stimulation.
The short answer is no it will not "effect" your penis in the sense of causing a disorder. You may find your desire level is very high when you do start again and may ejaculate rather quickly. This will settle once you back in to a regular rhythm and frequency of having sex again.
Some guys find their sexual desire gets more and more the longer they abstain, then at a point as the body "realises" sexual activity is not forthcoming may then begin to supress the sexual desire.
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