This research was conducted as a randomized controlled study to determine the effect of stress ball application on stress, anxiety and comfort in women with breast cancer receiving chemotherapy.

The research was conducted as a randomized controlled study. A total of 74 patients were randomly assigned to the stress ball group (n=37) and the control group (n=37).

Inclusion Criteria:

• who is literate in Turkish,
• who was diagnosed with stage 1, 2 and 3 breast cancer
• who had the second cure or above chemotherapy receiving treatment
• over 18 years of age
• female
• platelet level >50,000 mm3
• not having any physical problems squeezing a stress ball

Exclusion Criteria:

• those who did not agree to participate in the study
• those who received chemotherapy for the first time,
• those who had any physical disability to squeeze a stress ball
• Any receiving intravenous treatment from both arms,
• having had a unilateral or bilateral mastectomy and having a problem squeezing a stress ball,
• having any psychiatric disease,