Thank you for asking Healthcare majic.
My name is Dr Ehsan Ullah &
I have gone through your query.
these can be Anal
warts are can occur inside and around the anus.
The condition is also called condyloma acuminata.
these result from
Human Papilloma virus which is in 90% of cases ,
due to Sexually transmitted infectiosn...
another condition
which leads to such white blisters is the
genital herpes...
Anal herpes are caused by the
herpes simplex virus .
Anal herpes is an infection caused by the herpes virus that erupts as sores or blisters around the anus, t
he opening through which bowel movements pass.
there are some other causes for such lesions
but
the important aspect
is the visual examination of these lesion
by
the physician as most of these are diagnosed by just clinical examination and
timely treatment is good to avoid complications ...
all such lesions are not the case of sexually transmitted infection.
Hope this may help you. Let me know if anything not clear.
Thanks.