Hi,
Thanks for the query.
Tears in the anus could be anal fissures.
Piles or hemorrhoids usually present as prolapsed masses.
Tears between anus and vagina could be due to cuts, scratches etc.
If you are having problems with these things better to get examined and take treatment accordingly.
Intrauterine
contraceptive devices can present with symptoms like pain, irregular menstrual bleeding etc.
For more details: http://srsree.blogspot.in/2013/11/iucds-when-to-consult-doctor.html
Usually these symptoms will subside soon.
If they persist, better to consult gynecologist once and get examined.
Possibly symptomatic treatment will cure the problem.
If symptoms persist even after that, removal of IUCD may be adviced.
Take care.