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A 28-year-old male asked:

Hi i am indian.if there is no bone inside a man's penis(i am not sure, guess so), how does blood flowing to the penis alone make such a strong erection?

2 doctor answers2 doctors weighed in
Dr. Robert Killian
General Practice 29 years experience
Anatomy: Blood flows in two directions: out from the heart in arteries and back to the heart in veins. In the penis sexual arousal causes the veins at the base of the penis to constrict making outflow of blood more difficult. The attires pump blood into the penis and less blood is allowed to flow out leading to what we call an erection.
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Dr. George Klauber
Specializes in Pediatric Urology
No penile bone: In humans. Penis becomes stiff by blood trapped in the 2 sponge like corpora cavernosa (erectile penile rods) blood vessels leading from corpora are temorarily obstructed by walls swelling. Blood is pumped into rods from heart via arteries ; arterioles ; outflow blocked results in satisfactory erection.
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Related questions

A 38-year-old male asked:
I have never had a full erection. What can increase blood flow to the penis?
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Public Health 6 years experience
People with this condition often visit the doctor first to evaluate the cause of not having a full erection. Rest assured that your family doctor can ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
View all answers
A 49-year-old member asked:
For what reasons might the blood not clot in the penis during extended erections?
Dr. David Sneid
Endocrinology 42 years experience
It's not supposed to: There is a constant interplay between clotting and anti-clotting factors in the blood stream. Eventually, clotting will occur, but not during normal o... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 46-year-old male asked:
Can my corpus spongeiouim get torn while trying to get an erection by squeezing real hard so it pushes more blood into penis head, I felt a pop?
Dr. Karen Butler
Family Medicine 22 years experience
Well: You can have a fracture of the penis. Better see your doctor
Created for people with ongoing healthcare needs but benefits everyone.
A 33-year-old male asked:
I have trouble getting erections. I dont want to take viagra. Is L-citrulline good for blood flow to penis? I read it was. Thanks
Dr. Harold Mandel
General Practice 39 years experience
Yes: L-citrulline is a naturally occurring amino acid which is found in food, such as watermelons, and it is also made in the body. It may help to open up ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 30-year-old male asked:
I've noticed that I have trouble maintain an erection during sex. I have pinched nerves in my legs. Is it possible they are stopping blood to my penis?
Dr. Gregory Lewis
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See answer : On the basis of the history you provided, it is more likely that any erectile dysfunction in your situation would be related directly to the "nerve" p... Read More
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Nov 13, 2013

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