There did not give your baby to eat red watermelon such things, you are wrong, if this is really the case as long as the blood may be hemorrhoids, but such a small baby seemed unlikely.

有没有给孩子吃西瓜这类红的东西，你看错了，如果真的是血的话只要可能是痔疮，不过这么小的孩子好象不大可能。

youdao

A watermelon is red inside and green outside.

西瓜内红外绿。

《新英汉大辞典》

Red foods such as tomatoes, watermelon and pink grapefruit contain lycopene, which may help protect the skin from the sun's damaging UV rays.

红色的食物，如西红柿，西瓜，粉红色葡萄柚含有番茄红素，有助于保护皮肤免受太阳紫外线的侵害。

youdao

Red or sweet onions, mango or watermelon, any fruit or vegetable that you think would go well in your ceviche probably will.

NPR: Cool and Comforting Ceviche

The chemotherapy came in colors straw yellow and a red somewhere between the flesh of a watermelon and a cherry but did not fume or smoke the way some of her own most dramatic poisons had.

NEWYORKER: A Tiny Feast