There is more than one possible cause for this (as with most medical symptoms) but I would suspect that your stool is too hard, which may mean you do not move your bowels often enough, or that you are eating too much cheese, which is a binding agent. It is also possible that you have hemorrhoids, if you notice swelling of the bum. You might need to consult a doctor.
Answer
Be sure to drink several glasses of water daily and to eat at least one apple a day. That should improve matters and you should easily be able to relieve yourself.
Pigeons do not defecate on the wing, but must be landed to defecate. Their legs grip the base of the tail during flight to increase streamlining, and means they cant defecate on the wing as other birds do, such as seagulls.
Not being able to defecate feces properly. It's horrible.
Yes, snails defecate
You just defecate.
When they eat food, they have to defecate. They would also defecate if they have intestinal problems or sickness. Also, fear and stress can make animals defecate.
you cant
Rats defecate where it is convenient for them.
Seals defecate almost anywhere.
Defecate on My Face was created in 1986.
Yes. Shellfish defecate. But it is not like human faeces .
Reindeer normally defecate in the woods in the land they inhabit
Anything that eats anything (Ticks live) can defecate.