A particulate water-absorbent resin suitable for absorbing polymer-containing viscous liquids that are selected from blood, blood-containing body fluid, watery stool and other types of fecal matter, wherein the resin is a partially neutralized polyacrylic acid, wherein the resin has an average particle diameter of 50-500 μm, the resin including resin particles having diameters between 180 μm and 355 μm, the resin having a specific surface area of no less than 0.05 m 2 /g when measured for the resin particles having diameters between 180 μm and 355 μm by a BET multipoint technique using krypton gas as an adsorption gas, as described in the section of the description entitled " Specific Surface Area", wherein the resin is crosslinked, wherein the resin has a water retention capacity of 5-30 g/g for 0.9 wt% physiological saline under a centrifugal force of 167 G, as described in the section of the description entitled " Water Retention Capacity", wherein 0.02 g of the water-absorbent resin exhibits a swelling power of no less than 5 N (newtons) upon lapse of 60 seconds after starting to absorb 0.9 wt% physiological saline, as described in the section of the description entitled " Swelling Power", and wherein the resin is produced by a process that comprises partially neutralizing an acrylic acid as a monomer in an alkaline aqueous solution, the amount of the monomer in the aqueous solution being between 20 wt% and the saturation concentration; adding a radical polymerization initiator to the aqueous solution containing the partially neutralized monomer; preparing a dispersion medium by adding a surfactant to a petroleum-based hydrocarbon solvent; polymerizing the monomer by reversed-phase suspension polymerization which includes adding to the dispersion medium the aqueous solution containing the partially neutralized monomer and the radical polymerization initiator to prepare a reversed-phase suspension, and heating the thus prepared suspension to form resin particles of the polyacrylic acid; and subjecting the resulting resin particles to surface crosslinking by adding to the suspension a surface crosslinking agent in an amount of from 0.005 mol% to 1 mol% in relation to the total monomer amount. wherein the resin is a partially neutralized polyacrylic acid, wherein the resin has an average particle diameter of 50-500 μm, the resin including resin particles having diameters between 180 μm and 355 μm, the resin having a specific surface area of no less than 0.05 m 2 /g when measured for the resin particles having diameters between 180 μm and 355 μm by a BET multipoint technique using krypton gas as an adsorption gas, as described in the section of the description entitled " Specific Surface Area", wherein the resin is crosslinked, wherein the resin has a water retention capacity of 5-30 g/g for 0.9 wt% physiological saline under a centrifugal force of 167 G, as described in the section of the description entitled " Water Retention Capacity", wherein 0.02 g of the water-absorbent resin exhibits a swelling power of no less than 5 N (newtons) upon lapse of 60 seconds after starting to absorb 0.9 wt% physiological saline, as described in the section of the description entitled " Swelling Power", and wherein the resin is produced by a process that comprises partially neutralizing an acrylic acid as a monomer in an alkaline aqueous solution, the amount of the monomer in the aqueous solution being between 20 wt% and the saturation concentration; adding a radical polymerization initiator to the aqueous solution containing the partially neutralized monomer; preparing a dispersion medium by adding a surfactant to a petroleum-based hydrocarbon solvent; polymerizing the monomer by reversed-phase suspension polymerization which includes adding to the dispersion medium the aqueous solution containing the partially neutralized monomer and the radical polymerization initiator to prepare a reversed-phase suspension, and heating the thus prepared suspension to form resin particles of the polyacrylic acid; and subjecting the resulting resin particles to surface crosslinking by adding to the suspension a surface crosslinking agent in an amount of from 0.005 mol% to 1 mol% in relation to the total monomer amount.