Why should Muslim Women wear Hijab?

Ask yourself, or ask the next person who asks you that question, if a female judge walked into the courtroom wearing a tight miniskirt and low-cut blouse, would you take her seriously? Who would you respect more, a woman dressed like that or one dressed modestly? The Qur’an was revealed for all times, and though circumstances change, human nature does not. The fact is that men do like to look at women, so a woman who covers herself is more likely to be respected as a person than looked upon as a piece of meat or toy!

Muslim women wear hijab—which is more than just a head cover—because God ordered them to do so in two places in the Qur’an, and because Prophet Muhammad (pbuh) also ordered it. The Qur’an says in Surah 24, verses 30 – 31 what means:
*{Tell the believing men to lower their gaze and be modest. That is purer for them! Allah is Aware of what they do. And tell the believing women to lower their gaze and guard their modesty; that they should not display their beauty and  and their adornment only that which is apparent, and to draw their veils over their bosoms, and not to reveal their adornment save to their own husbands or fathers or husbands fathers, or their sons or their husbands’ sons, or their brothers or their brothers’ sons or sisters sons, or their women, or their slaves, or male attendants who lack vigor, or children who know naught of women’s nakedness. And let them not stamp their feet so as to reveal what they hide of their adornment. And turn unto Allah together, O believers, in order that ye may succeed.}*

These verses tell us that our Islamic dress is not just a matter of covering the head alone, but also of covering the bosom, which is attractive to men, and of lowering the gaze and walking in a way that does not attract attention. Note that the order to lower the gaze was addressed first to men..

Also the other verse about the same point, which is verse number 59 in Surah 33:

*{O Prophet! Tell thy wives and thy daughters and the women of the believers to draw their cloaks close round them [when they go abroad]. That will be better, that so they may be recognized and not annoyed. Allah is ever Forgiving, Merciful.}*

This indicates that one of the reasons for hijab is to distinguish the believing woman from the non-believing. This relates to the logic behind hijab.
 
Al Sayda Aisha:
Mentioned the women of Ansar, praised them and said good words about them. She then said: When Surat Al-Nur came down, they took the curtains, tore them and made head covers (veils) of them. (Sunan Abu Dawud: Book 32, Number 4089) Allah knows best

Prophet(SAW) said (Frightening hadith!):
“That among the signs of the Day of Judgment is that there will be women who will be dressed but will be naked, so curse them because for they are truly cursed! And they will never ever smell the fragrance of Paradise – authentic narration.” Allah knows best