In this article, we will explore various tests and observations you can make using your hands to gain insights into your health. Remember, this content is for educational purposes only and should not be viewed as medical advice. Always consult with a healthcare professional for personalized medical advice.
Identifying Arachnodactyly: The Thumb and Wrist Signs
Arachnodactyly, characterized by long, slender fingers, can be indicative of certain genetic conditions such as Marfan syndrome or Ehlers-Danlos syndrome (EDS). To check for arachnodactyly, perform the following tests:
Thumb Sign
- Make a fist with your thumb inside.
- Observe if your thumb sticks out the other side up to the joint.
Wrist Sign
- Wrap your pinky and thumb around your wrist.
- Check if your thumb can completely cover the pinky nail.
If you test positive for both signs, consult your doctor for further assessment.
Assessing Hypermobility: The Pinky and Thumb Tests
Hypermobility is a feature of Ehlers-Danlos syndrome (EDS), a genetic condition affecting collagen. To test for hypermobility, perform the following tests:
Pinky Test
- Place your hand on a flat surface.
- Bring your pinky back and see if it can go past 90 degrees.
Thumb Test
- Try to bring your thumb to your forearm.
Hypermobility can be associated with several EDS types, but having a few hypermobile joints does not necessarily mean you have EDS.

Analyzing Palm Color: Palmer Erythema
Palmer erythema is characterized by redness in the palms due to dilated blood vessels. Causes can include liver disease, rheumatoid arthritis, pregnancy, and heredity. If you notice new palm redness, consult your doctor for further evaluation.
Finger Length Ratio and Health Risks
Research has shown correlations between finger length ratios and risks for certain cancers. Men with longer index fingers and shorter ring fingers may have a lower risk of prostate cancer, while women with the same ratio may have a higher risk of breast cancer. However, more research is needed before using finger length ratios in clinical settings.
Fingerprint Patterns and High Blood Pressure
Individuals with a whirl fingerprint pattern may be more likely to develop hypertension. While this information is not yet utilized in clinical practice, it may provide insights into personal risk factors.
Testing for Carpal Tunnel Syndrome: The Phalen’s Test
To test for carpal tunnel syndrome, perform the following test:
- Put the backs of your hands together.
- Relax your arms and hold the position.
- Observe if numbness or tingling occurs in your thumb and first two fingers.
If you experience discomfort, consult your doctor for further assessment.
Observing Joint Patterns for Arthritis
Rheumatologists often examine hand joints to identify patterns that may indicate specific types of arthritis. For instance, arthritis in the distal interphalangeal (DIP) joints can suggest psoriatic arthritis or osteoarthritis, while rheumatoid arthritis typically does not affect these joints.
Remember, always consult a healthcare professional for personalized medical advice. Your hands can provide valuable insights into your health, but it is important to seek professional guidance for proper diagnosis and treatment.
The Importance of Hand Joints
Hand joints can tell us a lot about our health, as different types of arthritis can affect specific joints. For example, psoriatic arthritis typically impacts the distal interphalangeal (DIP) joints, whereas rheumatoid arthritis does not. Identifying the pattern of affected joints, along with other symptoms and blood work, can help diagnose the underlying condition.
Clubbing: A Sign of Underlying Disease
Clubbing is a condition characterized by the rounding and enlargement of the fingertips and nails, which can be a sign of various underlying diseases. In some cases, clubbing is an indication of lung or heart problems, gastrointestinal disorders, or even certain types of cancer. If you notice clubbing in your fingers, consult your doctor for further evaluation.
Assessing Grip Strength
Grip strength can be an indicator of overall muscle health and function. Weak grip strength may be a sign of nerve damage, muscle weakness, or other underlying health issues. To assess your grip strength, try squeezing a stress ball or gripping a hand dynamometer. If you have concerns about your grip strength, consult a healthcare professional for further assessment.

Detecting Inflammation and Infections
Swelling, redness, and warmth in the hands can be signs of inflammation or infection. Conditions like cellulitis, an infection of the skin and underlying tissues, can cause these symptoms. If you notice any sudden changes in the appearance or temperature of your hands, consult a healthcare professional as soon as possible.
The Role of Skin Conditions in Hand Health
Various skin conditions can affect the health of our hands. For example, eczema can cause dry, itchy patches on the skin, while psoriasis can lead to red, scaly plaques. Identifying and treating these conditions can help improve the health and appearance of your hands.
Assessing the Health of Your Nails
The appearance of your nails can also provide valuable information about your health. For example, white spots or lines on the nails may be due to injury or a zinc deficiency, while yellow, thickened nails can be a sign of fungal infection. If you notice any unusual changes in your nails, consult a healthcare professional for further evaluation.
Wrapping Up: Your Hands as Health Indicators
Our hands can provide us with vital clues about our overall health. By paying attention to the appearance and function of our hands, we can identify potential health issues and seek appropriate treatment. Remember, if you have any concerns about your hands or any other aspect of your health, it’s essential to consult a healthcare professional for further guidance.
In conclusion, our hands offer an abundance of information about our health, and understanding these signals can lead to better decision-making about our wellbeing. By conducting simple tests and observing our hands, we can uncover important insights into our overall health and address potential issues before they become severe. So, the next time you look at your hands, take a moment to appreciate the wealth of information they can provide about your health.
Thank you for spreading a little awareness of Ehlers Danlos Syndrome. So many people don’t know about it and it’s really frustrating as a person who has the hyper mobility type.
I’ve been recently diagnosed with EDS after two years of symptoms (joint issues, migraines, POTS, gi dysmotility, and a condition called SMAS) and they did lots of tests on my hands! So facinating!
Love this one, I was having numbness in my hands and my GP sent me to a Neurologist. The Neurologist did an EMG and noticed something so he referred me to another specialist. This specialist did more test and did a DNA test and I have CMT type 1A disease. I still have carpal tunnel and am dealing with the CMT as well.