Top 5 Trending Medical Tests on Social Media: Essential Insights on Their Necessity

Social media platforms are flooded with health content, making it difficult for individuals to discern credible information from misleading posts. A recent study has highlighted significant concerns about the accuracy of health-related information shared online, particularly regarding various medical tests. This article explores five medical tests frequently promoted by influencers and whether they are truly necessary for your health.

Health videos are becoming increasingly popular across social media channels like Instagram and TikTok. While these platforms can offer insights into health conditions and treatments, many influencers are endorsing medical tests that may be more harmful than beneficial.

According to a report published on February 26 in JAMA Network Open, the majority of social media posts about medical tests lack evidence-based facts about the associated risks and benefits. The study analyzed 982 English-language posts concerning five medical screening tests, including:

• Full-body MRI scans
• Cancer blood tests
• Testosterone tests
• Hormone tests for egg count
• Gut microbiome tests

The findings revealed that most posts failed to mention the risks of overdiagnosis, misdiagnosis, and other potential harms associated with these medical tests. Notably, approximately 84% of these posts carried a “promotional tone,” and 68% of the influencers seemingly had financial incentives to discuss specific tests. Over half of the posts encouraged people to take immediate action and get the tests.

However, the review indicated that posts authored by medical professionals were more likely to address possible harms and less likely to recommend the tests. According to Brooks Nickel, PhD, a research fellow at the University of Sydney School of Public Health, “The vast majority of these posts were overwhelmingly misleading. They present testing as a means of early screening and taking control of your health, while in reality, many tests are unnecessary for most individuals.”

Let’s delve into expert opinions regarding the five popular medical tests mentioned above and provide clarity on whether you should consider them.

1. Full-Body MRI

Also known as whole-body magnetic resonance imaging (WB-MRI), this test scans your entire body for cancer and other health concerns. Proponents claim it can detect over 500 conditions. WB-MRI takes approximately 40 to 50 minutes and costs around $2,500.

While the interest in full-body MRIs is on the rise, particularly due to social media influence, experts caution that:

• There are no standardized protocols for WB-MRI, leading to variations in the quality of scans.
• Patients often experience false positives, resulting in unnecessary stress and further invasive procedures like biopsies.
• Full-body MRIs typically are not recommended for healthy individuals.

Dr. Matthew Davenport, a professor at the University of Michigan, states, “The harms of WB-MRIs outweigh the benefits, as excessive findings can lead to unnecessary interventions.”

2. Cancer Blood Tests

Multi-cancer early detection (MCED) tests aim to identify cancer by targeting substances shed by cancer cells rather than the tumor itself. These tests can identify DNA fragments or proteins associated with cancer present in the bloodstream.

However:

• These tests cannot definitively diagnose cancer and often necessitate additional testing, which can be deemed unnecessary.
• Current MCED tests are still undergoing clinical trials and lack FDA approval.

The Galleri test, among the most recognized, has a list price of approximately $949.

3. AMH Tests

The anti-Müllerian hormone (AMH) test helps assess ovarian reserve but does not predict conception success or the timing of menopause. It is commonly marketed as a fertility testing option.

Concerns surrounding AMH tests include:

• They cannot determine egg quality or fertility potential accurately.
• A low result may prompt unnecessary fertility interventions.

As Dr. Scott Nelson states, “These tests require clinical interpretation to be meaningful.”

4. Gut Microbiome Tests

Gut microbiome tests analyze fecal samples to identify organisms in the microbiome and evaluate potential health issues. Retail prices typically range in the hundreds of dollars.

However:

• Claims of wellness benefits from early detection are not well substantiated.
• Many tests available online are unverified, with only one receiving FDA approval.

5. Low Testosterone Tests

Tests to assess testosterone levels are commonly offered and range from $70 to $150. While they target both men and women, the safety of subsequent testosterone replacement therapies remains questionable.

Nickel highlights concerns regarding:

• Fear-mongering tactics used to sell testosterone supplements.
• The risks of adverse health effects, such as heightened sleep apnea risk and potential blood clotting.

Conclusion: To Test or Not to Test?

The allure of medical testing on social media can be strong, especially when fueled by genuine desires to improve health. Yet, it is vital to remain cautious of the information presented by influencers, who may not have the proper medical expertise.

As Dr. Christopher Hess notes, “The buzz surrounding these tests is often driven by financial motives rather than patient benefit.” Thus, medical guidance should ideally originate from trusted healthcare practitioners who rely on sound, evidence-based practices.

Before proceeding with any medical test, verify the credentials of the laboratory and consider reputable sources of information. Always consult your healthcare provider to make informed decisions about your health.