Doctors have named a little-known sign of lung cancer

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Some symptoms of cancer can be confused with signs of other ailments, so it is recommended to undergo regular examinations to rule out oncology or start treatment in a timely manner.

Experts from the British Macmillan Cancer Support Foundation have warned that facial swelling can be a key sign of lung cancer. It can occur when a tumor presses on the superior vena cava. This vein receives blood flow from the head, neck, upper limbs, and upper body.

In addition to facial swelling, compression of the superior vena cava can also cause swelling in the neck, arms, and upper chest. In addition, the cancer can spread to nearby lymph nodes, which also become swollen.

Other symptoms of compression of the superior vena cava caused by lung cancer may include shortness of breath, headache, dizziness, blurred vision, and blue veins that are very prominent on the chest. If you notice these signs, your doctor may recommend that you get checked out.