Hajj is one of 5 pillars of Islam, which is all performed while wearing Ihram (a special dress consist of 2 white sheets of cloth for men & women in well covered dress), there are some prohibitions while wearing Ihram, either you wear it for Hajj or Umrah.
- Not to use perfume.
 - Not to remove finger-nails, toe-nails, and hair.
 - Men should not cover their head.
 - Women should not cover their face, neither wear gloves.
 - Not to use a dress with stitches and sewing.
 - Not to haunt an edible or wild animal.
 - Not to have sexual intercourse or similar things.
 

