Gastric cancer is the third most common cause of cancer-related death in the world, and it remains difficult to cure in Western countries, primarily because most patients present with advanced disease. In the United States, stomach malignancy is currently the 15th most common cancer.
The condition of the tendrils near the fruit stem is another indicator of when a watermelon is ready to pick. When they are green at the attachment point, the fruit is not yet ripe, but when they start to turn brown and dry, it is harvest time.
When a watermelon is a pale shade of green or white, it is unripe. If you eat the watermelon at this stage, you experience an acidic taste. For migraine sufferers, the increase in acidity will likely cause a migraine headache. If the watermelon is too ripe, it develops dark red soft spots as in the picture shown below.