Abortion is a sign of yang deficiency and weakness. Generally speaking, the best way to tonify yang is to replenish blood with donkey-hide gelatin, which can replenish blood, replenish qi and generate yang. In geomantic omen, it is generally said that the environment nourishes yang, so people should eat donkey-hide gelatin to nourish yang in a sunny but not too hot room.
As far as the human body itself is concerned, the head is the intersection of yang, and people talk about the balance of yin and yang in the human body, so the head is yin balance and the feet are yin balance.
In other words, it is best to keep the temperature of the head and feet relatively stable, but after abortion, people are weak and the yang is not enough to gather on their heads. If they cut their hair again, there will be too much yin, which is easy to get into their brains. Therefore, cutting the head within seven days will make the yin enter the brain and cause headaches.
This is mainly a medical thing, and the theory of yin-yang balance is also used, but it is the same as Feng Shui theory. However, it is generally not directly said that there is an inevitable relationship between Feng Shui and abortion.
Personally, I suggest not to cut it, and wait until the seventh opening.