One of the best pressure points to use. Not dangerous, but still effective. In most fights, the assailant will use the arms to attack you, so these work
great. There are no dangerous ones, as I have tried them all.

Back

The back is very fragile. Damage to it can be done easily, and effectively. There are many dangerous moves, listed below:
1. Shindo
2. Reidai
3. Sekichu
4. Chokyo (I am not sure how dangerous, if at all, this area is. I know its hurts, because I have fell on it before, but I did not suffer pain after)

Chest

The chest has some organs in side bones, but not like the head does with the skull. It has a cage of bones called the ribs, which can, but not always, defend its organs.
There are deadly moves to the chest, for many organs lie there. here are the ones to avoid:

1. Tentotsu (not deadly, but if you miss it can be!)
2. Reikyo
3. Kyo-in
4. Ganka
5. Kinteki (thats hitting below the belt!!)

Head

The head is one of the hardest spots of your body. The skull protects you brain, the most vital part of your body. It is the only part of the body that has a carapace.
Unfortunately for us, it does have weaknesses. Be careful with these moves, for most could be damaging to the brain, and maybe even deadly. The ones to watch out for are:

1. Noko
2. Amon
3. Tenchu
4. Keikotsu
5. Keichu

Legs

I am sure most of you are familiar with the famous “dead leg”. Well that is a pressure point. A well aimed kick to these areas can disable some one quickly in a fight.

Quoted Passage