A sanitary pad is a personal hygiene product designed for use during menstruation. It is typically made of absorbent materials and is worn inside underwear to absorb menstrual fluid. Sanitary pads come in various sizes and thicknesses to accommodate different flow levels and personal preferences. These pads often have an adhesive backing to keep them securely in place. They are available in both disposable and reusable forms, with disposable pads being the most common. Proper disposal is important to maintain hygiene and environmental considerations, as many disposable pads are made from non-biodegradable materials.