The results showed the information on fold change of the down‐regulated lncRNAs in the blood samples of breast cancer patients comparing to the healthy women as (p < .05) MEG3 (0.216 ± 0.026), NBAT1 (0.233 ± 0.051), NKILA (0.453 ± 0.087), GAS5 (0.188 ± 0.051), Z38 (0.487 ± 0.113), EPB41L4A‐AS2 (0.256 ± 0.057), BC040587 (0.260 ± 0.038). Here, CLDND1 is linked to breast cancer.