Why women are not allowed to enter temples during their menstural periods?

Answer: During the incovenient period extending upto 5 days, womens body produces negative energies which is not conducive for any prayer. (It is almost generally similar to a cat producing negative energies & vibrations). Also, even when one uses the modern sanitary napkins and hygenic methods, the naturally produced body odour during these days, could not fully be eliminated. Temple is a location where all the positive energies are generated; and the negative vibrations produced during the menstrual couse might disturb the surroundings. So it is still advisable, despite the latest hygenic applications, for women to avoid entering any temple during their monthly periods. So as to not to disturb the surroundings and permit others to concentrate on prayer. Please visit this page on Temple Visits to know more about the significance.