First of all I would like to inquire on any discharge from either the anus or around it? While defecating? Blood in discharge or just mucus?
This pain could be the result of an abscess
which is a common and easily treatable condition. Do you have a history of temperature with an unknown cause?
You might have to show a specialist, usually a general surgeon
, who will examine the area around the anus and even internally if requires through a proctosigmoidoscopy.
Possible conditions could be internal or external hemorrhoids, anal fissure
, anal fistula
As you have also listed concern on feeling of incomplete emptying of bladder contents, there could be a possibility of the inflammation/swelling internally that is applying pressure to the structures surrounding it, which also contains the urethra
. The swelling internally could be applying pressure on the urethra or the bladder that could cause incomplete emptying of the bladder contents.
Advice: Visit a surgeon for manual examination, scheduling a proctosigmoidoscopy can help rule out a number of conditions.
Apply any sterile lubricant around the anus, it might help you feel a little more comfortable.
Wishing you the best of health.