Allergies to watermelon are not very common but are mainly associated with symptoms of the oral allergy syndrome. In some cases, cutaneous and respiratory symptoms have also been reported. It has also been confirmed that those with watermelon allergies may also have sensitization to melon, cucumber, pumpkin, and zucchini, which are the members of the Cucurbitaceae family, the same family to which watermelon belongs. For this type of allergy, watermelon Citrullus lanatus IgE test is used. Generally in vitro allergy testing is used for allergy diagnosis.