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Noticed Purple Colour On Penis Head While Masturbating. Reason?

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Posted on Tue, 14 May 2013
Question: Hi, whilst masturbating tonight I noticed that each time I stroked my penis the head on it became very very purple almost black in colour. Even after I became flaccid it is still a darker then normal colour. I'm concerned as to why my penis would turn very very dark purple to be almost black.
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Answered by Dr. Srikanth Reddy (41 minutes later)
Hello,
Thanks for choosing health care magic for posting your query.
The penis become erect when the vein emptying the blood from the penis is constricted and doesn't allow the blood to release from the penis. This causes excessive collection of venous blood which leads to engorgement of penis and finally erection. This is a normal physiology.
Now the arterial blood is bright red in colour and the venous blood is dark in colour (purple/dark purple). This colour may vary occasionally and resultant chage in the erect penis.
This is the reason why your penis appears dark purple in colour when you are stroking it.
There is nothing to be concerned about unless:
1) The erection is painful.
2) There is failure in erection.
Until then, you can be comfortable.
If you are smoking these days, then stop smoking meanwhile.
Hope I am able to answer your concerns.
If you have any further query, I would be glad to help you.
If not, you can close the discussion and rate the answer accordingly.
In future if you wish to contact me directly, you can use the below mentioned link:
bit.ly/dr-srikanth-reddy

Wish you good health,
Dr. Srikanth Reddy M.D.
Note: Consult a Urologist online for consultation about prostate and bladder problems, sexual dysfunction, kidney stones, prostate enlargement, urinary incontinence, impotence and erectile dysfunction - Click here.

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Srikanth Reddy

Psychiatrist

Practicing since :2007

Answered : 2770 Questions

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Noticed Purple Colour On Penis Head While Masturbating. Reason?

Hello,
Thanks for choosing health care magic for posting your query.
The penis become erect when the vein emptying the blood from the penis is constricted and doesn't allow the blood to release from the penis. This causes excessive collection of venous blood which leads to engorgement of penis and finally erection. This is a normal physiology.
Now the arterial blood is bright red in colour and the venous blood is dark in colour (purple/dark purple). This colour may vary occasionally and resultant chage in the erect penis.
This is the reason why your penis appears dark purple in colour when you are stroking it.
There is nothing to be concerned about unless:
1) The erection is painful.
2) There is failure in erection.
Until then, you can be comfortable.
If you are smoking these days, then stop smoking meanwhile.
Hope I am able to answer your concerns.
If you have any further query, I would be glad to help you.
If not, you can close the discussion and rate the answer accordingly.
In future if you wish to contact me directly, you can use the below mentioned link:
bit.ly/dr-srikanth-reddy

Wish you good health,
Dr. Srikanth Reddy M.D.