The two most common causes for rubbing rear ends are tapeworms and anal sac fluid buildup.
Tapeworms
A tapeworm is an intestinal parasite which your pet can contract
from ingesting a flea. Tapeworms can be seen in your pets stool. They'll look like little
rice segments. Your veterinarian can prescribe medication to rid your pet of tapeworms.
Anal Sac Blockage/Infection
There are two small glands on either side and just below the anus
called the anal sacs. They are scent glands that produce a very foul smelling fluid. In
the act of defecating, the fluid is naturally discharged from the anal glands. The foul
smelling fluid may serve a purpose in territory marking.
Cause of Blockage The opening of the gland will sometimes become blocked resulting
in a build-up of fluid inside the sacs. The glands can become infected or the pressure
from the fluid may cause inflammation and/or irritation.
Symptoms
Licking around the anus
Scooting along the floor
Not able to get comfortable, pacing
Swelling of the glands
Abscess (the gland may become red and painful swelling may occur
on either side of the anus. The abscess can rupture and release a bloody fluid. If this
occurs consult your veterinarian immediately!)
Treatment Your veterinarian can express your pets anal glands if needed.
Prevention Alter your pets diet to make the stool firmer and regularly clip
the hair around the anus.
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