For those who are not aware, Hajj is known as a pilgrimage that is usually being followed by Muslims whenever they want to show that they can make sacrifices for the Lord. This follows the footsteps done by Prophet Ibrahim, also known as Abraham in some religions.
This usually happens during the last month of the Islamic calendar. All Muslims are expected to undergo this pilgrimage at least once in their lives. This is recommended for both men and women, but Muslim women may have more restrictions when they need to make this pilgrimage. Muslims should know what they can and cannot do beforehand.