Animated-Teeth.com points out that substantial healing occurs in the two weeks after a tooth is pulled, with all the soft tissue healing completed by the end of the fourth week after the extraction. According to WebMD, residual bleeding and swelling can continue for 24 hours after a tooth is pulled.
WebMD cautions that severe bleeding or pain more than four hours after a tooth extraction is a cause for concern, and the dentist should be called. Animated-Teeth.com explains that stitches can usually be removed by the 10th day after extraction. The new tissue is typically very tender at this time and prone to bleed easily. New gum tissue forms by the end of the fourth week, but it may take up to eight months for bone tissue to regrow to fill the empty tooth socket space.