The only hair areas that I am aware of that have restrictions are:
The beard for men
Narrated By Ibn 'Umar : Allah's Apostle said, "Cut the moustaches
short and leave the beard (as it is)."
Sahih al-Bukhary, The Book of Dress, Hadith Number:5954
The eyebrows for women
Narrated By 'Abdullah : Allah has cursed those women who practise
tattooing and those who get themselves tattooed, and those who remove
their face hairs, and those who create a space between their teeth
artificially to look beautiful, and such women as change the features
created by Allah. Why then should I not curse those whom the Prophet
has cursed? And that is in Allah's Book. i.e. His Saying: 'And what
the Apostle gives you take it and what he forbids you abstain (from
Sahih al-Bukhary, The Book of Dress, Hadith Number:5994
Removing hair from the rest of the body is halal, and in some areas (arm pits and pubic area) it is sunnah.
Narrated By Abu Huraira : I heard the Prophet saying. "Five practices
are characteristics of the Fitra: circumcision, shaving the pubic
hair, cutting the moustaches short, clipping the nails, and depilating
the hair of the armpits."
Sahih al-Bukhary, The Book of Dress, Hadith Number:5952