That's true as pb4 stated...a tight rectum (stress, IBS, hemmies or other growths) can cause a change in stool shape.
Since you're having urgency, plus mucus and increased bms...I'd lean more toward inflammation.
If you're not on rectal meds, start them.
I see in your siggie you have Canasa and cortifoam listed...were you taking them at all or completely off them before your symptoms changed?
you should see the doc since this is new for you...he could do a sig-scope to check things out.
Keep us posted as to how you're doing.
*Heather* Status..Asacol 6 (3 twice daily); enemas every 4th night
~diagnosed January 1989 UC (proctosigmoiditis)
~Bentylol (dicyclomine) 20mg as needed
~Probiotic 4(Natural Factors Protec) bedtime + Primadophilus Reuteri Pearls occasionally
~multi-digestive enzymes as needed
~Ranitidine,Pariet (reflux); Effexor XR 75mg(depression); Pulmicort/Airomir (asthma)
~URSO for PSC (or PBC) 500mg X 2 daily (LFTs back to NORMAL!!)
My doc's logic.. "TREAT (FROM)BOTH ENDS" worth it !!!