Some diseases such as diabetes can damage the nerves and muscles of the penis. With poorly controlled diabetes, there can be problems with the vascular system. These problems can result in nerve and tissue damage in the genitals. Without healthy nerves and tissue in the penis, the ability to sustain an erection is compromised. Treatment can help, so be sure and talk to your doctor if you have feel you have ED.
Penis
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Dr. Mehmet Oz, MD , Cardiology (Cardiovascular Disease), answeredSee All 4 AnswersAverage penis size is five and half inches.
To learn more about penis size and whether there's a correlation with other body parts, watch this video with Dr. Oz, urologist Dr. Harry Fisch, and sex therapist Dr. Laura Berman.
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Dr. Arthur R. Crowley, MD , Urology, answeredMost of the human penile growth occurs between infancy and five years of age. There is additional growth five years after the onset of puberty.
Studies have been both positive and negative regarding correlating the size of the penis and other body parts. Some genetic (for example, endocrine and/or hormonal disruptions) and environmental factors can affect penile growth. Age does not seem to have a negative correlation with penile growth. -
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While it's true that erections can develop in response to a wide range of physical, mental, or emotional stimulation -- young boys and men may get erections for no clear reason -- it's a bit more complicated than "see boobs (or butt, or wildebeest, etc.), get hard." In fact, the journey that ends in an erection is a multi-step process that involves a number of different body parts and systems, including the hormonal, circulatory, and nervous systems. -
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Dr. Mehmet Oz, MD , Cardiology (Cardiovascular Disease), answeredSee All 2 Answers
Penis curvature is normal, but it depends on the degree of the curvature whether complications arise. To learn more about penis curvature, watch this video with Dr. Oz, urologist Dr. Harry Fisch and sex therapist Dr. Laura Berman.
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Dr. Harry Fisch, MD , Urology, answeredSee All 2 AnswersAlthough it's the #1 question men have, there are no approved methods (pumps, pills) that will increase the size of a man's penis. In this video, I will confirm that there are no magic methods that will enlarge penis size.
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Dr. Harry Fisch, MD , Urology, answeredNope, race does not have an effect on penis size. Several studies, starting with those reported in Alfred Kinsey's classic 1948 work Sexual Behavior in the Human Male have found no differences, on average, in penis length between whites, blacks, and Asians.
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A man's penis changes with age. In general, you can expect to notice certain shifts in the male reproductive organs, starting as early as age 30. The head of the penis may become paler and less purple in tone as a result of reduced blood flow to the area, or the overall color may not look as even as before. The penis may slightly decrease in size over time, losing an estimated half-inch in length and girth between a man's 30s and his 70s, according to some experts.
Extra pounds around the abdomen may add the illusion of even greater shrinkage by hiding part of the penis under his belly, a problem that's easily remedied with weight loss. The diameter of a man's testicles also shrinks over the years. -
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A man's penis can become less sensitive as he gets older, which may make it more difficult for him to achieve an erection or reach orgasm. This decreased sensitivity may be bothersome for some guys, while other men don't really seem to mind.
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The following are common penis injuries:
- Cuts Sure, the most notorious penile injury is no doubt the complete severing of the organ, as made infamous by Lorena Bobbitt. But a far more common injury can occur when a guy accidentally catches his penis in his pants zipper, a la There's Something About Mary. Painful? Yes, but such a cut is usually minor and heals relatively quickly, though a man should refrain from sex and may need to take antibiotics to prevent infection in the meantime.
- Bruises Anything that involves blunt force trauma to the genitals in can injure and bruise a man's penis and scrotum. The most common cause is a kick or knee to the groin, either in a fight or accidentally during sports. If he does get bruised, an icepack and rest will usually help him heal. Most guys are all too familiar with that nauseous feeling that comes after getting kicked in the genitals. But if he has worsening pain or swelling, or the nausea continues for more than an hour or so, he should get prompt medical attention, since testicles can get ruptured.
- Fractures When women worry about hurting a man's penis, this is usually their big fear. So can you really "break" a penis? Well, sort of. What we call a "fracture" is actually a tear in one of the tube-like structures in the penis that hold blood during an erection. It typically occurs during intercourse, when your pelvic bone bumps his erect penis too hard and his erection gets bent accidentally (you're on top of him and come down too vigorously, for example). In addition to severe pain, his penis may curve abnormally and he may have difficulty urinating or having intercourse. He may also have significant swelling of the penis and dark, reddish-purple discoloration as the blood fills the space underneath the skin. If the outer skin breaks also, he could have a considerable amount of bleeding. Our advice: Be careful! If you do suspect a fracture, get him to the emergency room immediately; surgery is often necessary to prevent permanent problems.
- Chafing Anything that causes rubbing against the skin of the penis can result in rawness and irritation. Vigorous masturbation without lube, going commando in pants with rough material, or rug/sheet burns can all result in chafing. Avoiding friction on the area usually allows things to clear up in a day or two.