A material forms a pattern by applying a photosensitive composition to a base material and drying to form a photosensitive coating and performing exposure and development, and a method for forming the pattern. A photosensitive composition includes water-soluble organic particles, and a solvent, wherein the solvent is a poor solvent for the water-soluble organic particles. Preferably, the water-soluble organic particles of the photosensitive composition includes a polymer which contains a unit structure (A) for forming organic particles, a unit structure (B) for forming interparticle crosslinkage, and a unit structure (C) for imparting dispersibility, and the photosensitive composition further includes a photoacid generator. In addition, the water-soluble organic particles of the photosensitive composition includes a polymer which contains the unit structure (A) for forming organic particles, the unit structure (B) for forming interparticle crosslinkage, the unit structure (C) for imparting dispersibility, and a unit structure (D) having a photoacid generating group.