Weight loss surgery is the process of changing the flow of food through the digestive system. As a result of the surgery, people are able to lose weight at a rapid pace. But, if you consider what this procedure is – a significant transformation of your body – it is clear to see why it can impact other areas of your health and wellbeing, including your hair. Some men and women who undergo weight loss surgery will experience hair loss in the months to follow. The good news is it is often just a temporary concern and nothing to worry about in the long term.