Clubbing in the fingers of a 33-year old female with pulmonary hypertension.
Clubbing in the fingers of a 33-year old female with pulmonary hypertension.

Nail clubbing is found in 29% of lung cancer patients!

‘Fingernail clubbing’ is one of most well-know indicators for recognizing cancer in the hand. A.k.a. ‘Hippocratic nail’ this nail characteristic been known since the early days of the Greek philosopher Hippocrates, who recognized nail clubbing as a classic sign of disease.

Today ‘nail clubbing’ is associated various lung diseases, especially lung cancer with non–small cell lung carcinoma. Nail clubbing is also linked with heart problems and gastrointestinal problems – but these are less common than lung problems.

Statistics on nail clubbing & lung cancer:

“Nail clubbing has been reported in 29% of patients with lung cancer and is observed more commonly in patients with non–small cell lung carcinoma (35%) than in patients with small cell lung carcinoma (4%).”

How to recognize ‘clubbing fingernails’?

Clubbing is usually a painless but complex fingernail disorder which often goes unnoticed of it’s presence in the hands of patients!

In individuals without clubbing, if two opposing fingers are placed together, a diamond-shaped window will appear. In clubbing, this window is obliterated and the distal angle formed by the two nails becomes wider. This is known as Schamroth sign window test.

Schamroth's windows test is used in the diagnosis of nail clubbing.

NOTICE: Cases of ‘brachydactyly’ should NOT be associated with the medical problems related to ‘nail clubbing’; the ‘clubbed thumb’ is likely the most well-known variant of ‘brachydactyly’ – which is e.g. seen in the hands of the american actress Megan Fox

Actress Megan Fox has a ‘clubbed thumb’ – which should not be confused with ‘nail clubbing’.
American actress Megan Fox has a 'clubbed thumb' - which should NOT be associated with 'nail clubbing'.

SUGGESTION FOR FURTHER READING:

Nail clubbing: developments, treatment & prevention!
Hands on lung cancer: the clubbing fingernail!
Fingernail disorders & medical hand analysis!
Overview of more common nail disorders!
Megan Fox has a ‘clubbed thumb’ – not to be confused with ‘fingernail clubbing’!!

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The hands of children: what are the common fingernail problems during childhood?

The hands of children: what are the common fingernail problems during childhood?

The hands of children: about fingernail disorders in childhood!

While fingernail disorders are usually merely a ‘cosmetic problem’, the fingernails do present important signs related to your health!

The nail can be affected by a wide spectrum of congenital, familial or acquired disorders.

This article describes for you the ‘normal’ nail disorders + the ‘serious’ nail problems in infants & children – including a list of the most common diseases that cause fingernail problems.

Certain nail disorders in childhood are common and pretty harmless – the following nail problems are an example of belong to the ‘harmless’ category: (1) Beau’s lines, (2) fragile nails, (3) pits of the nail plate, (4) koilonychia, (5) v-ridging (chevron nails), (6) punctate leukonychia, and (7) periungual pigmentation.

However, other nail disorders are often related to various congenital, familial or acquired disorders. You can read more about how to recognize these nail conditions, in the following articles:

The hands of children: fingernail disorders in childhood
Examining fingernails in elderly patients

The fingernail & toenail enclyclopedia.

LEARN MORE ABOUT FINGERNAIL DISORDERS:
THE NAIL TUTOR
The fingernail encyclopedia
Yellow fingernails: the causes & home remedies
Lee Redmond had the world’s longest fingernails

Chinese palmistry: medical palm reading from China.

Chinese palmistry: medical palm reading from China.

Chinese Palmistry: medical Palm Reading & traditional chinese medicine (TCM) from China

In China is Palmistry always been a branch of Traditional Chinese Medicine (TCM). According TCM Palmistry the palm, the thumb and the fingernails provide interesting clues about your heart, your digestion and reproductive system.

An article including: the history of palmistry in China & the 4 pilars of ‘Traditional Chinese Medicine’ (TCM).

Traditional Chinese medicine doctors say they can study your palm and learn about the state of your heart, healthwise. The color (pink is healthy), appearance of blue veins and lunula (white crescent at the base of the fingernail) all are indicators of health in TCM. Health problems can show up in your hands, palms and fingernails and if you read the warning signs, you can improve your constitution.

Dr Ma Xueling, a TCM folk doctor from Shang Hai provides some guidelines for medical palm reading on the basis of your fingernails, your veins & the color of your hand.

Chinese palmistry: palm reading from China.

MORE PALMISTRY FROM ASIA:
TCM Palmistry: traditional Chinese palm reading
Palmistry: find a palm reading expert in China
Palmistry goes medical: traditional Indian palm reading
Richard Unger’s LIFEPRINTS: translated into Korean language
Find a palmist in 15 Asian countries