To determine whether body awareness and upper extremity functionality are affected in patients with or without lymphedema development after breast cancer surgery in comparison with individuals without a history of cancer.

Inclusion Criteria:

first group:

• being female,
• being aged 18-65 years,
• having undergone unilateral breast cancer surgery,
• being diagnosed with secondary lymphedema in the upper extremity according to the International Lymphedema Association
• not having any orthopedic disease that would prevent walking, and volunteering to participate in the study.

second group:The inclusion criteria for the breast cancer surgery group

• without lymphedema were being female,
• being aged 18-65 years,
• having undergone unilateral breast cancer surgery, and volunteering to participate in the study.

Lastly, the inclusion criteria for the control group were:

• being female,
• being aged 18-65 years,
• having no history of cancer surgery, and volunteering to participate in the study.

Exclusion Criteria: for all groups

• not being willing to participate in the study;
• the presence of metastases, neurological, or orthopedic disorders;
• postural deformities, such as scoliosis and kyphosis;
• mental and cognitive disorders; or communication/cooperation problems

being a woman and having had breast cancer surgery