Cold Extremities: Clinical Meaning

Peripheral Artery Disease

Peripheral artery disease (PAD) is caused by atherosclerosis narrowing the arteries supplying the legs, causing claudication (leg pain with walking), poor wound healing, and increased cardiovascular risk.

Raynaud's Disease

Raynaud's disease causes episodic vasospasm of small arteries in the fingers and toes in response to cold or stress, causing characteristic color changes (white, blue, red). Primary Raynaud's is benign; secondary forms indicate underlying connective tissue disease.

Scleroderma (Systemic Sclerosis)

Scleroderma is a chronic autoimmune disease causing skin hardening, fibrosis of internal organs (lungs, kidneys, GI tract), and vascular abnormalities. Raynaud's phenomenon is often an early manifestation; there is no cure.

Iron Deficiency Anemia

Iron deficiency anemia is the most common nutritional deficiency worldwide, caused by inadequate dietary intake, blood loss, or malabsorption. It causes fatigue, pallor, shortness of breath, and pica; iron supplementation is the treatment.

Anorexia Nervosa

Anorexia nervosa is an eating disorder with severe food restriction, intense fear of weight gain, and distorted body image. It has the highest mortality rate of any psychiatric disorder; multidisciplinary treatment including nutritional rehabilitation and psychotherapy is essential.

Anemia

Anemia is a condition where there are insufficient healthy red blood cells to carry adequate oxygen to body tissues. It has many causes including nutritional deficiencies, chronic disease, and blood loss.