Watermelon Allergy Test
This page explains the watermelon allergy test, what it measures, and how to arrange it. A watermelon allergy test checks your blood for antibodies that may indicate an allergic response to watermelon. It is usually ordered when someone has had symptoms like itching, hives, or swelling after eating watermelon or foods containing it.
- Sample type
- blood
- Category
- Allergy
- Turnaround
- 1-3 business days
- Price
- $49
- Referral
- Not required
A watermelon allergy test checks your blood for antibodies that may indicate an allergic response to watermelon. It is usually ordered when someone has had symptoms like itching, hives, or swelling after eating watermelon or foods containing it.
What it measures
- Watermelon-specific IgE — An antibody that can be linked to allergic reactions to watermelon.
- Total IgE — A general measure of allergic tendency; not specific to watermelon.
- Cross-reactive allergens — Proteins similar to those in ragweed, grass, or other fruits that may cause symptoms.
Who it is for
This test is typically ordered by an allergist or primary care clinician for people who have had allergic symptoms after eating watermelon or related foods.
Preparation
No fasting or special preparation is needed. You can eat and drink normally before the blood draw.
Results and what they mean
Results are reported as a level or class for each allergen, which your clinician interprets alongside your symptoms and history. A positive result does not always mean you have a true allergy, and a negative result does not rule one out. This is general information, not medical advice; discuss your results with a qualified healthcare professional.
How to order this test
- Choose the test and place a confidential order online.
- Select a certified collection site and pick a time that suits you.
- Have your specimen collected — most draws take only a few minutes.
- Review results in a secure portal, typically within 1–3 days.
Preparation, hours, and pricing vary by site; confirm details directly with the lab before your visit.
Availability by state
Direct-access online ordering for the watermelon allergy test is available in most states. It is currently unavailable in 6 states:
Everywhere else you can order confidentially and collect your sample at a certified site. Browse by state →
Frequently asked questions
Do I need to avoid watermelon before the test?
No, you do not need to avoid watermelon before this blood test. However, if you have had a severe reaction, talk to your clinician first.
How long does it take to get results?
Results are usually available within 1 to 3 business days.
Can this test tell me if I outgrew my allergy?
It can help, but your clinician will consider your symptoms and may repeat testing over time to see if levels change.
Is this test painful?
It is a standard blood draw, which may feel like a brief pinch. There is no ongoing pain.