Dress alterations refer to the process of modifying a garment to improve its fit, style, or comfort. This can include adjustments such as shortening or lengthening hems, taking in or letting out seams, and altering sleeve lengths. Tailors or seamstresses typically perform these alterations to ensure that the dress fits the wearer perfectly. Common reasons for dress alterations include changes in body size, personal style preferences, or preparing a dress for a special occasion, such as a wedding. Many people seek alterations for formal dresses, bridesmaid dresses, or prom dresses to achieve a polished and tailored look.