Can I edit a pattern after I posted it?

Answer :

No, you can't edit it. This is simply because someone might be tying the pattern while you edit it and then he/she can't continue when getting back to it.

If there are small mistakes that won't ruin anyones work, then a moderator can fix the problem. Just PM a moderator and give instructions on what is wrong including the row number the mistake is on, and the knot you want fixed.