How long will gums bleed after teeth being pulled?

I had a single wisdom tooth removed in August this year, together with a normal, but decayed tooth next to it. After a general anaesthetic, it took about 3 to 4 weeks for the gum to settle down and for my eating to get totally back to normal. At about the 8 week point I found I had a tiny piece of bone protruding from the gum, but this came out by itself a couple of weeks later. I'm aged 62, by the way.