Preliminary associations between gut microbiota and cancers derived from the inverse variance weighted method. Estimates with p < 0.05 were shown in purple, and estimates with p > 0.05 were shown in white or yellow. BC, breast cancer; BCER+, breast cancer (estrogen receptor‐positive); BCER‐, breast cancer (estrogen receptor‐negative); EC, endometrial cancer; ECEH, endometrial cancer (endometrioid histology); ECNEH, endometrial cancer (non‐endometrioid histology); LC, lung cancer; LUAD, lung adenocarcinoma; LUSC, lung squamous carcinoma; OC, ovarian cancer; OCHGS, ovarian cancer (high‐grade serous); OCLGS, ovarian cancer (low grade serous); OCED, ovarian cancer (endometrioid); OCCC, ovarian cancer (clear cell); OCIM, ovarian cancer (invasive mucinous); PC, prostate cancer.