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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Do You Suggest For A Bluish Bruise In My Buttcrack That Bleeds When Wiped?

Hi Doctor. So I have noticed this for a few days now. This is kind of embarrassing though. Sometimes at the end of the day I don t know what it is, but something gets stuck at the top or in my buttcrack. And whenever I go to wipe, there s a little blood on the toilet paper. I didn t actually go asking question online until now. It said that it s just due to me leaving moisture down there, but as I looked at it today in the mirror, I thought something was stuck there again so I took a shower and I made sure I washed and dried down there really well, but it looks bluish or black, like a bruise almost. It also looks like a small hole. I wiped again and there was a little blood on it, so once I was done I put Vaseline on it. But I have no idea what it is and I m very concerned! I am a 13 year old girl.
Wed, 12 Feb 2014
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Dermatologist,  's  Response
Hi,

I can understand your concern for bluish bruise in butt crack that bleeds when wiped.

Regarding the problem of bruises which we call medially as "purpuric or ecchymotic spots" is common condition seen due to multiple causes. In your case it can be a normal phenomenon or can be due to other causes.

To guide you elaborately- Bruise or the purpura is simply formed due to extravasation and collection of red blood cells from the vessels under the skin.

There are multiple of factors causing extravasation of red blood cells from the vessels-

1. Due to trauma to the small blood vessels of the skin.

2. Due to some problem in the platelets ( the cells which prevents the extravasation of red blood cells from the vessels and forms the clot).

3. Due to problem with the coagulation factors which helps in repair of the injury to blood vessels and helps in clot formation.

4. Due to combination of all these factors.


For the best part of the diagnosis there are simple tests of platelet function and coagulation factors done routinely in all the simple laboratories to rule out the exact cause of the problem. If these tests are normal then you can rest assured and relieve your tensions regarding the rash. Otherwise also if the test are abnormal then also can be very well treated without any problem.

Take care.
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What Do You Suggest For A Bluish Bruise In My Buttcrack That Bleeds When Wiped?

Hi, I can understand your concern for bluish bruise in butt crack that bleeds when wiped. Regarding the problem of bruises which we call medially as purpuric or ecchymotic spots is common condition seen due to multiple causes. In your case it can be a normal phenomenon or can be due to other causes. To guide you elaborately- Bruise or the purpura is simply formed due to extravasation and collection of red blood cells from the vessels under the skin. There are multiple of factors causing extravasation of red blood cells from the vessels- 1. Due to trauma to the small blood vessels of the skin. 2. Due to some problem in the platelets ( the cells which prevents the extravasation of red blood cells from the vessels and forms the clot). 3. Due to problem with the coagulation factors which helps in repair of the injury to blood vessels and helps in clot formation. 4. Due to combination of all these factors. For the best part of the diagnosis there are simple tests of platelet function and coagulation factors done routinely in all the simple laboratories to rule out the exact cause of the problem. If these tests are normal then you can rest assured and relieve your tensions regarding the rash. Otherwise also if the test are abnormal then also can be very well treated without any problem. Take care.