penis Archives - The Sex MD

Why Women Prefer Girth

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What creates pleasure for women during sexual intercourse?

It’s no secret that women tend to place more importance in penis girth over length. A recent study conducted by SPAN lab in California highlighted this fact when they found that women could more reliably judge girth […]

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Never Been With an Uncircumcised Man

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Since the majority of men in the US have been circumcised shortly after birth, there are lots of women (and men for that matter) who have never seen an uncircumcised guy, much less had them as their sexual partner. Recently, I was asked what it would be like […]

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Focused on Penis Size

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Recently I received this question:

“Dr. Castellanos, I’m just wondering why all guys seem to be concerned about their size down there?……”

Human males have the longest and thickest penis of any member of the ape world (oh get over it people!), considered freakishly long when compared […]

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The Role of Rehab After Prostate Surgery

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With prostate cancer making up about 30% of all cancers in men, it’s not surprising that over 100,000 men in the United States per year require complete removal of their prostate in what is called a radical prostatectomy.  One of the complications of this type of […]

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How Big is Too Big

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You’ll almost never hear a guy complain that his penis is too big. If you do, it’s because his partner is uncomfortable with it, it’s so big that he’s losing consciousness when he gets an erection, or he’s trying to wear outfits that […]

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Problems with Erection

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It is so important for me to give people honest and accurate information about their own bodies and their sexuality because the media so often promotes unrealistic expectations and distorted views.  But these lead to anxiety, frustration, unhappiness, and anger – all of which are unhealthy.  One of the […]

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Curved Penis

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You know, nobody’s perfect.  As much as we would like to think that our bodies are balanced and symmetrical, we all have one foot bigger than the other, one leg longer than the other, one ear lower than the other, and our hair tend to grow in […]

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Giving Men Oral Sex (for Non-Actors)

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With the ever increasing exposure to pornography available today, more and more people are using porn as their model on which they base their sexual activity.  Doing this often leads people to very unrealistic expectations about many different aspects of sexual activity, including level of excitement and response […]

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Improving Your Erection

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There are multiple factors that affect your erection including physical, neurochemical, hormonal, psychological, and emotional. Because of this, a man needs to maximize all of these to ensure the best erection he can have. Oftentimes a man will seek help for his erections only after he has had […]

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Fractured Penis

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Yes, you can break your penis. It’s called a penile fracture, but this is a misnomer because there is no bone to break. When a penis breaks, or ruptures, what happens is that the connective tissue (tunica albuginea) that surrounds the corpus cavernosum tears so that the […]

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