1. Leg Cancer Thrombosis: Legs are more prone to thrombosis due to their distance from the heart. If a patient suddenly experiences swelling, pain, cyanosis, or even loss of temperature in one leg, thrombosis should be suspected, and cancer as a cause should be ruled out.
2. Abnormal Lump in the Legs: Many people discover abnormal lumps in their legs, only to find out after medical examination that they are metastatic tumors.
Bone metastasis is the most common cause of leg lumps, which can occur in lung cancer, liver cancer, breast cancer, prostate cancer, etc.
3. Numbness and Mobility Impairment in the Legs: Cancer can spread not only to the lower limbs but also to the head, such as lung cancer causing brain metastasis.
