When we have an accident or injury, we often feel blind-sided. We never saw it coming! Well, sometimes you can - astrologically! What can show this with astrology? Let's go into that.
By the way, if you want a simple way to keep track of the transit planets each month (and to stay on top of potential accident energy!), make sure you're signed up for the monthly worksheet.
First ingredient: Hard Aspects to the Body Part in Question
First, you want to see harsh aspects (square, quincunx, opposition; conjunction by Saturn, Uranus, Neptune, Pluto) to the body part that is affected in the chart.
Say someone breaks their foot - in that case, you'd want to see harsh aspects to their Neptune, 12th house cusp, or 12th house ruler, as these all rule your feet. If someone sprains their wrist, you'd want to see harsh aspects to their Mercury, 3rd house cusp, or 3rd house ruler, as these all rule your wrists.
You don't need a bunch of harsh aspects, especially if it shows in their chart that they're prone to accidents/injuries in general, or difficulties with that part of their body (this can be shown through many hard aspects to the rulers in the natal chart, or through one of the rulers being challenged on its own, like anaretic [at 29 degrees], at a critical degree, conjunct Saturn, Uranus, or Pluto, or intercepted).
Second ingredient: Mars, planet of accidents
Next, you need Mars. Mars is the ruler of accidents and injuries, so you'll almost always see Mars involved. This can be:
- transit Mars making a harsh aspect
- transit Mars in the house ruling the body part (or the 1st house, which rules you in general)
- harsh transit aspects to natal Mars
Without Mars, then it's difficult to see an accident or injury happening. Mars is usually involved! Sometimes Uranus will be the instigator, but 9 times out of 10, it's Mars.
Third ingredient: A trigger
Lastly, you need a trigger, which will usually be the Sun or Mercury harshly hitting that area of the chart affected or the 1st house on the day of the accident/injury. The Sun and Mercury move quickly, so they set it off. Venus moves about as fast, but Venus is a gentler planet, so harsh Venus generally won't do it.
Sometimes the transit Moon can be the trigger, moving through the house that naturally rules the body part impacted, or conjunct, square, or opposing one of the rulers or your natal Mars. But Moon aspects only last about 4-6 hours, so Moon aspects are a lot less likely to trigger.
Extra Note: Predispositions in the Natal Chart
Usually, the person will have a predisposition in their natal chart to accidents/injuries, which will show up with prominent Aries or Mars, or harsh aspects to the Sun. If not that, you'll see harsh aspects to the part of the body in question, like harsh Mars to Neptune for someone who breaks their foot.
Another thing to consider is their progressed chart, which could show an aspect being made by progressed planets to natal planets, or progressed-to-progressed planet aspects, which wouldn't show up in the natal chart, but can give some predisposition to an accident/injury (it's just not permanent, so you may only be predisposed for a period of time).
Suggested Reading: Critical Planets & Your Health