A method for forming and folding an absorbent sanitary article comprising a waistband, an absorbent pad extending from an intermediate portion of the waistband, the absorbent pad separating a first and a second flap (2b, 2c) of the waistband, the absorbent sanitary article comprising a first closing element at one end of the first flap and a second closing element at one end of the second flap, the absorbent pad being, at least in use, folded towards the waistband to define a crotch of the absorbent article, and the first and second flaps (2b, 2c) being folded onto the folded absorbent pad and fixed thereto by the first closing element and the second closing element, respectively, to define pants, the forming and folding method comprising: - preparing a continuous, multilayer web and feeding it in a feed direction; - applying a succession of absorbent pads, spaced from each other, on the continuous, multilayer web; - folding the absorbent pads onto the continuous, multilayer web; - temporarily fastening the folded absorbent pads to the continuous, multilayer web; - applying a succession of the first closing elements on the continuous, multilayer web; - applying a succession of the second closing elements on the continuous, multilayer web, each absorbent pad being interposed between one of the first closing elements and one of the second closing elements; the forming and folding method being characterized in that it comprises: - making a succession of lines of weakness in the continuous, multilayer web between each second closing element and the first closing element following it in the feed direction, each line of weakness being made and disposed between consecutive absorbent articles in the feed direction, the forming and folding method further comprising: - folding the first flap of each absorbent article towards the corresponding absorbent pad; - folding the second flap of each absorbent article towards the corresponding absorbent pad, the step of folding the first flap of each absorbent article towards the corresponding absorbent pad or the step of folding the second flap of each absorbent article towards the corresponding absorbent pad comprising a step of tearing the continuous, multilayer web at the lines of weakness, thereby separating the absorbent articles. - preparing a continuous, multilayer web and feeding it in a feed direction; - applying a succession of absorbent pads, spaced from each other, on the continuous, multilayer web; - folding the absorbent pads onto the continuous, multilayer web; - temporarily fastening the folded absorbent pads to the continuous, multilayer web; - applying a succession of the first closing elements on the continuous, multilayer web; - applying a succession of the second closing elements on the continuous, multilayer web, each absorbent pad being interposed between one of the first closing elements and one of the second closing elements; - making a succession of lines of weakness in the continuous, multilayer web between each second closing element and the first closing element following it in the feed direction, each line of weakness being made and disposed between consecutive absorbent articles in the feed direction, the forming and folding method further comprising: - folding the first flap of each absorbent article towards the corresponding absorbent pad; - folding the second flap of each absorbent article towards the corresponding absorbent pad,