http://www.texasfertilityacupuncture.com/miscarriage_prevention.aspx - If you are curious about complications after a miscarriage, some are more serious while others are normal. Heavy bleeding is normal after miscarriage. Miscarriage symptoms may be painful cramps or even clinical depression. Some symptoms such as the bleeding will go away given a week or so, but more serious symptoms after miscarriage such as depression will need medical intervention to prevent further complications.