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Many men worry that their penis isn’t as big as it should be, but research suggests most men underestimate the size of their tackle.
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We look at the wild claims and potential harms of the different penis enlargement treatments on the market.
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How well do you really know your penis? Find out the five penis facts that every man should know
Find out the average shape and size of a penis and what to do if you're worried.
Find out how to keep your penis and testicles clean, healthy and fit for purpose.
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Find out what testicles should look and feel like and how to spot problems.
Is masturbation normal, and is it possible to masturbate too much? We sort fact from myth to answer your questions.
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Learn about the symptoms, causes and treatments for Peyronie’s disease.
An expert explains the causes and treatments of erection problems and premature ejaculation. With videos.
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Teenagers talk about their experience of growing up and how they cope with the changes in their bodies
Find out about the changes that happen to boys’ and girls’ bodies during puberty.
Articles and videos on contraception, STIs and talking about sex. Includes a section for teens
What to expect as you grow up, including erections, feelings, wet dreams, spots and more
Answers to sex FAQs, including saying no, what to do if a condom splits, being gay and more
What to expect at an STI clinic, including tests, treatment and the questions you may be asked
Millions of people have already had their free "midlife MOT". Find out why this health check-up is so important
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