Unmarried status is a barrier for access to treatment in patients with metastatic renal cell carcinoma.

Unmarried men are at higher risk of not benefiting of cytoreductive nephrectomy, metastasectomy, or systemic therapy than their married counterparts. Unmarried women are at higher risk of not benefiting of cytoreductive nephrectomy or systemic therapy. These gender-related differences cumulate in higher CSM in unmarried men, but not in unmarried women.