Support groups bring together people facing similar issues, whether that's illness, relationship problems or major life changes. Members of support groups often share experiences and advice. It can be helpful just getting to talk with other people who are in the same situation.
While not everyone wants or needs support beyond that offered by family and friends, you may find it helpful to turn to others outside your immediate circle. A support group can help you cope better and feel less isolated as you make connections with others facing similar challenges. A support group shouldn't replace your standard medical care, but it can be a valuable resource to help you cope.