Duration on Bleed Damage?

[O11O1]

I was looking at the rules for Bleeding Attack and couldn't figure out the max timer on it.

PFsrd said wrote:

Bleeding can be stopped by a DC 15 Heal check or through the application of any spell that cures hit point damage (even if the bleed is ability damage).

So clearly a heal spell or first aid kit can stop it, but other than that it would appear to just go on infinately, for the rest of the targets life. That seems like it's an omission, no time-based deactivation.

Otherwise you can stab a farmer, and then absolutely nothing can save him after you skip away singing a song. Trolls have it even worse, as their EX regeneration doesn't count as a spell, meaning they're stuck with the bleeding until the end of their potentially very long days...

[Tarantula]

It is until healed (Heal check or magical) or death. Funny thing about that DC 15 heal check... a farmer or anyone else without a negative wisdom bonus has a 25% chance to make the check. Not exactly hard. Its a standard action and you can try again.

[Archaeik]

Bleed lasts until cured/stopped/whatever.
I have seen some bleed effects that explicitly list a duration. (most do not and therefore are indefinite)

You can make a heal check untrained.
A typical farmer may have more difficult time succeeding than an adventurer, but it seems to me that a "bleed" represents a more significant wound than just being hit with a weapon (in terms of game mechanics) which is why it warrants that difficulty to remove.