11/20 Lump Near Your Neck
Don’t Worry:
Spread out in a network, your lymph nodes are bean-shaped glands that play an important role in your immune system. When bacteria, viruses or other foreign substances invade your body, your lymph nodes can feel swollen and hard with all the white blood cells piling in to fight off the assault. Once you’re done battling whatever it was, they will go back to normal.
Do Worry:
If you feel the lump in the hollow above either collarbone—where your supraclavicular lymph nodes are—these can be important sentinels for disease in your abdomen. If it happens on your left side specifically, it’s called Troisier’s sign, and it’s considered an indication of cancer in the stomach or other organs, even if you have no other symptoms. See your doctor as soon as possible.
12 / 20 Cold Hands
Don’t Worry:
Genetics can be the reason you often have cold hands, even in summer—research shows it runs in families. The elderly, who tend to have slower circulation, as well as very thin people without much insulation, can also feel more sensitive to cold, especially in the extremities. Avoiding nicotine and caffeine, which restrict blood vessels, and dressing in layers to keep your core temperature up can help.
Do Worry:
Raynaud’s phenomenon, which affects 10 per cent of the population, is a vascular abnormality characterized by attacks of cold, pain, tingling or burning, and white or bluish colour in the fingers. It can be managed with medication, but in some cases, Raynaud’s can be a sign of an autoimmune disease called scleroderma.
Anemia, caused by low iron levels, can also make your hands and feet feel cold, and is also linked to fatigue, dizziness and chest pains. Iron supplements can help restore your hemoglobin levels.
13 / 20 White Marks on Your Nails
Don’t Worry:
Nails can reveal some important things about your health. Those mysterious dots or lines on your fingernails—called leukonychia—are usually caused by bumping or pinching the skin under your cuticle where your nails start to grow. They’re usually harmless and take six to nine months to grow out completely. If a spot looks yellowish and you can see thickening of the nail, that could indicate a fungal infection that requires a topical prescription.
Do Worry:
If the bands are vertical and dark-coloured, see your doctor as soon as possible. “In a fair-skinned person, these can indicate subungual melanoma, a rare form of skin cancer under the nail,” says Tran. Darker-skinned people do get bands like this normally as they age, but if you notice new stripes or a change in their thickness, it warrants further investigation for melanoma
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