What are the common types of cancer that affect female dogs, and what are the recommended prevention and treatment options for cancer in female dogs?

Common types of cancer in female dogs include mammary gland tumors, lymphoma, and melanoma. Prevention options include spaying before the first heat cycle, maintaining a healthy weight, and regular veterinary check-ups. Treatment options may include surgery, chemotherapy, radiation therapy, and immunotherapy, depending on the type and stage of cancer.