Difficulty of the Sexual Act

The "difficulty of the sexual act" is Lacan's compressed formulation — introduced in Seminar XIV — for the constitutive impossibility that organises the subject's relation to the body and to jouissance. Rather than locating the fundamental human "difficulty" in being as such (a move attributed implicitly to a philosophical predecessor), Lacan displaces it onto the sexual act: it is there, in the irreducible failure of the sexual relation to complete itself, that the subject encounters its constitutive split. The sexual act cannot be accomplished in the mode of a seamless organic event precisely because the subject is a speaking being, inserted into language; the signifier cuts the subject off from any unmediated bodily unity, and the sexual act bears the mark of that cut most acutely. The "difficulty" is therefore not empirical (a matter of performance or circumstance) but structural — it is the very form in which the impossibility of the sexual relation (what Lacan will later formulate as "there is no sexual relation") announces itself.

Crucially, the difficulty of the sexual act is the generative site from which objet petit a is produced as a "sub-product." Objet a names the remainder or residue that falls away when the subject tries — and structurally fails — to unite with the Other through the body. This sub-product is neither the body itself nor the partner, but a partial, fallen piece that indexes the gap between the subject and jouissance. The passage further maps this logic onto the alienation-formula ("I am not thinking / I am not"): the forced choice of the vel of alienation finds its concrete, bodily staging in the sexual act, where the subject must choose between a mode of being that eludes it and a meaning that leaves its real untouched. The "for the Other" structure that grounds subject-constitution is thus not abstract but is anchored precisely in the difficulty of the sexual act.

The concept appears at page 239 of both jacques-lacan-seminar-14-1 and jacques-lacan-seminar-14, situating it as a pivotal moment within Seminar XIV's systematic reworking of the subject's constitution. It functions as a specification and re-anchoring of the broader theory of Alienation: whereas alienation names the structural forced choice by which the subject is constituted through language (the vel — being vs. meaning, "I am not thinking / I am not"), the difficulty of the sexual act provides the bodily, libidinal locus where that abstract structure becomes concrete and experiential. It is not a separate concept but rather the point at which the vel of alienation touches the Real of the body.

The concept is also an extension of Objet petit a: if objet a is the remainder produced by the subject's entry into the signifying chain (the piece that falls away from das Ding after symbolisation, as the Das Ding synthesis notes), then the difficulty of the sexual act is the generative scene of that production — the act whose structural failure precipitates the partial object as its sub-product. This connects further to Desire: desire is sustained by the impossibility of reaching das Ding, and the sexual act is the register in which that impossibility is most nakedly staged. The Demand structure is implicated as well, insofar as what is "demanded" in and through the sexual act inevitably exceeds the bodily event, leaving a remainder that is irreducible to either satisfaction or love. Taken together, the concept condenses Seminar XIV's central argument: that the subject's constitutive split is not merely logical but libidinal, inscribed in the very impossibility of sexual completion.

Seminar XIV · The Logic of PhantasyJacques Lacan · 1966 (p.239)

it is at this moment that I can recall that everything turns, for us, around what is involved in what has to be called the difficulty - not of being, as someone said in his old age the difficulty inherent in the sexual act.

The quote is theoretically loaded because of its precise displacement: by correcting "not of being" to "the difficulty inherent in the sexual act," Lacan shifts the locus of the fundamental human impasse from ontology (a philosophical register) to sexuality (the libidinal-Real), insisting that the word "difficulty" names a structural impossibility that is not existential but bodily and jouissance-related — the very site where objet a is produced as a residue.