No significant differences in age, body mass index, basal FSH, duration of infertility and percentage of patients with bilateral hydrosalpinx were detected between the subgroup of patients with rapid re-accumulation of hydrosalpinx fluid (i.e. within first 2 weeks after embryo transfer) and the subgroup of patients with no re-accumulation of hydrosalpinx fluid (Table 4). Here, BRD2 is linked to Infertility.