Question: what are the risks of not spaying my dog?
Answer: Complications from Spay/Neuter Surgery. ... 
Prostate Cancer. ... 
Testicular Cancer. ... 
Osteosarcoma (Bone Cancer) ... 
Mammary Cancer (Breast Cancer) ... 
Female Reproductive Tract Cancer (Uterine, Cervical, and Ovarian Cancers) ... 
Urinary Tract Cancer (Bladder and Urethra Cancers) ... 
Hemangiosarcoma.