Signs on the hands and skin that may indicate lung disease.

Blue fingernails can be a sign of pneumonia or emphysema; clubbed fingers are a common symptom of non-small cell lung cancer.

People with lung diseases often experience coughing, shortness of breath, and chest pain. In many cases, signs on the hands and skin can also indicate a problem with the lungs.

Clubbed fingers : Enlarged, drumstick-like fingertips can be caused by low blood oxygen levels or lung disease. This is a common occurrence in patients with non-small cell lung cancer.

Besides clubbed fingers, other signs of lung cancer include a persistent cough lasting 2-3 weeks, coughing up blood, shortness of breath, chest pain, difficulty swallowing, wheezing, and unexplained weight loss. If the tumor is at the top of the lung, it can cause symptoms such as pain in the shoulder, arm, elbow, or neck.

Blue nails: In healthy individuals, nails typically have a smooth surface and a pale pink color, indicating good blood and oxygen circulation. The part of the nail that grows past the skin may be opaque white or translucent.

Blue fingernails appear when the body doesn't have enough oxygen in the blood. This condition is common in people with asthma, chronic obstructive pulmonary disease (COPD), pneumonia, and pulmonary embolism. Blue fingernails can also be a symptom of other heart and blood vessel diseases.

Healthy fingernails are usually smooth and pink; if they turn blue or purple, it could indicate unhealthy lungs. (Image: Freepik)

Purple fingernails: Emphysema—a form of chronic obstructive pulmonary disease—and chronic bronchitis can also cause fingernails to turn purple.

Skin discoloration : This is often caused by sarcoidosis, a condition characterized by small, inflammatory cell growths in the lungs, affecting any organ in the body. Symptoms include a persistent dry cough, shortness of breath, chest pain, and changes in skin color. The affected skin area may become darker or lighter, and subcutaneous nodules may appear, especially around scars or tattoos.

Swelling and pain in the leg : This could be a sign of deep vein thrombosis, a blood clot in the leg. The blood clot can break off and travel to the lungs (pulmonary embolism), blocking blood flow and causing serious damage.

The lungs play a vital role in gas exchange, helping the body absorb oxygen and eliminate carbon dioxide. This organ has the ability to self-clean after ceasing exposure to pollutants. Breathing clean air can expand the tissues in the lungs, keeping them functioning normally. Families should improve indoor air quality, perhaps by purchasing air purifiers for individual rooms or using air filtration systems for their living spaces.

Performing appropriate exercises improves lung health. For example, yoga and swimming help reduce airway irritation, which is good for lung health. Deep breathing exercises help people with respiratory diseases breathe better and relax their minds.

Eating foods rich in antioxidants can help cleanse the lungs. Curcumin, the main active ingredient in turmeric, supports improved lung function, especially for smokers. The compound epigallocatechin gallate (EGCG) in green tea helps inhibit fibrosis or scarring of tissues.

Le Nguyen (According to Hindustan Times)

Readers can ask questions about respiratory illnesses here for doctors to answer.

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