This study reviews the controversy surrounding Dasein’s neutrality in Heidegger’s fundamental ontology. First, I reiterate the problem and examine Derrida’s assertion that the early Heidegger ignored sexual difference as well as how feminist philosophers accepted the case after that. Next, I analyse whether the neutrality of Dasein is justified at the essential and factual levels. I discuss whether (1) phenomenological neutralization is a male-biased outlook and (2) Heidegger’s thoughts according to such method were successful in neutralizing it. With regard to (...) (1), neutralization is not inherently androcentric. To address (2), I first argue that Heidegger’s philosophical project at the time was fundamental ontology, but he completed the task with the development of existential philosophical ideas in terms of the existential analytic. Finally, I demonstrate that the criticism of Heidegger’s covert generalization of masculinity, while almost unfair to fundamental ontological work, makes limited sense to existential philosophical work. (shrink)