For Aries , Mercury in 3rd house will be good for relations with brother and sisters . One might travels as well which might be in connection to profession or in relation to family life . One might get success in competitions too.
For Taurus , Mercury in 3rd house will be good for education matters but one might had to travel in connection to distant place in relation to higher education . One will be knowledgeable and charitable too . One will take good decisions in pressure situations as well and will be admired .
For Gemini , Mercury in 3rd house might keep one away from his birth place which might be in connection to profession or in relation to financial life . One had to strengthen relationships at personal level to get better domestic happiness.
For Cancer , Mercury in 3rd house might take native to overseas countries which might be in connection in relation to professional life . One had to take better care of his/her health and further there is need to control un-necessary expenses too.
For Leo, Mercury in 3rd house will be bad for financial life as well as domestic life of the native . This placement might leads to un-necessary travels and one might not get happiness in relation to family life and for financial life too.
For Virgo , Mercury in 3rd house will be good for professional life . One will rise in his/her professional life but one had to give quality time to his/her family as because of professional commitments, domestic happiness can lack to some extent.
For Libra , Mercury in 3rd house will be good for traveling part but flip side to it is one expenses will rise as well which had to be curtailed for better financial life . Mercury in 3rd house will be good for communication and one will get respect in society too .
For Scorpio , Mercury in 3rd house will be bad for one financial life and obstructions will come in his/her life . One had to take care while signing any documents . Further , one had to speak with care else another person can get hurt or due o lack of communication , problems can come in family .
For Sagittarius , Mercury in 3rd house will be bad for marital as well as professional life . At times , one might not able to give quality time to family due to professional life or it can also be possible that due to family problems , one might not able to work with full concentration at workplace too.
For Capricorn , Mercury in 3rd house will be debilitated and will be bad for luck prospects . One might had to face obstructions in important work . One had to take better care of his/her health too .
For Aquarius , Mercury in 3rd house will bad for education and progeny matters . Obstructions will rise and will also give rise to un-necessary travels too. Overall, it will be bad for concentration and from communication point of view as well.
For Pisces, Mercury in 3rd house will be bad for domestic happiness , mother health , gains from im-movable assets as well as bad for marital life. One might be lacking luck support too.