Structural arrangement for post-surgery garment for domestic animals and the like, more specifically a garment (1) for domestic animals (N) such as dogs and cats, inter alia, in particular used by animals on which abdominal interventions were performed, during their recovery, such as castration, caesarean section, tumor removal, etc. The garment (1) is formed by four parts, (Q1) and (Q1′), and (Q2) and (Q2′), joined at the edges thereof by longitudinal seams, (A) and (A1′), (C) and (D), (C) and (D′), both identical parts (Q1) and (Q1′) having on the sides (A) and (A′) two transverse seams (CO1), (CO2), (CO1′), (CO2′) which form a base (AB) and (AB′) that can be optionally opened. The ends are joined by sewing together parts (E) and (F), (G) and (H), (E′) and (F′), and (G′) and (H′). Thus, at the vertices of parts (Q1) and (Q2), (Q1′) and (Q2′), cutouts (PSQ1) and (PSQ2), (PIQ1) and (PIQ2), (P1C) and (P1), (P2), (PSQ1′) and (PSQ2′), (PIQ1′) and (PIQ2′), (P1B) and (P1A), and (P2A) are provided, with cuffs sewn around the periphery of each cutout; parts (Q1) and (Q2), as well as (Q1′) and (Q2′), are provided with longitudinal seams along the sides (C) and (D) and (C) and (D′) thereof, as already mentioned, the end of the longitudinal seams being located after the central portion (LC1) and (LC2), as well as (LC1′) and (LC2′); the free longitudinal edges (B) and (B′) of parts (Q2) and (Q2′) are provided with closure means formed by long zipper fasteners (Z) and (Z′).