I am giving her chart below.[Non-Astrologer can skip this chart]
After observing her chart I advised that, if it is not so urgent please do the operation after 18 Th of Oct as Mars is giving his aspect(Dristi) to 8th (house of death) house now.
From a technical point of view, there are many rules to consider when choosing the best time for surgery, though in this brief article I want to keep it simple.
In astrology the Moon represents flux and change, and successful surgery is about creating a successful change to the body.
You should also avoid all strong aspects to Mars, negative or positive.
[Which Body Part Governs Which sign I will also Discuss in Seperate Article thoughalready discussed in "Man and his Fate"]
More over Don’t fix the operation date :-
1. On your Vipat Tara , Pratyari Tara , Badh Tara.
2.When Moon is posited from your Moon-Sign in Dark Half period of Moon at 2,4,5,8,9,12 houses in Your Horoscope
3.When Moon is posited from Your Moon-Sign in Bright Half Priod of Moon at 4,6,7,8, 12 houses in Your Horoscope.