The present invention relates to a prosthesis for inguinal hernioplasty made up of a surgical mesh extending from a first end (6) to a second end (7) along a longitudinal direction (A) and comprising a first portion (1) that includes said first end (6), a second portion (2) that includes said second end (7) and a connecting portion (3) arranged between said first portion (1) and said second portion (2), wherein said first portion (1) has a substantially ring shape that is open or may be opened and is provided with a central hole (4), wherein said second portion (2) has a substantially elongated shape in said longitudinal direction (A), and wherein said connecting portion (3) has a width transverse to said longitudinal direction (A) smaller than the widths of said first portion (1) and said second portion (2) transverse to said longitudinal direction (A).