hello user
as per your history, you have black colored stools, and you also do very severe exercise, which is off and on !
Your doctor told you it as a external haemorroid, it might be true as you have anal area complains, but as per my knowledge, the color of external haemorroids bleed is fresh/bright red in color, not dark black(also known as altered blood) !!
The sensations around your anus might be due thrombosed haemorroids , for that local application of healing cream is fine, and if its not relived ,then a surgeon can remove it surgically, or using a sclerosing agent or some heat or
laser cautrisation !
I m rather worrying about the black blood color of your stools.
As the altered blood comes more up from the Gastrointestinal tract, which in your case may be due to intense exercise.
And according to my opinion you have to refrain from severe exercise, if the
black stool subsides then its no problem, but if it persists despite stopping of exercise, then i advice you to do a
colonoscopy !!!
regards
Dr Hari Om Chandrakar
MBBS