A typical case of Werner's syndrome was described. All characteristic features were present i.e.: atrophy of muscle and subcutaneous tissue, especially in distal parts of limbs, reduced and gray hairs, numerous atrophic ulcers and hyperkeratotic lesions in points under the pressure (elbow, feet), diffused osteoporosis in all bones, the most intensive in hands and feet, activity dental caries, bilateral cataract, high pitched, horse voice, caused by atrophy of voice cords, endocrinologic disturbances especially concerning testosterone, follicle stimulating hormone, and prolactin, hypoplasia of external genitals, the abnormal blood glucose curve. Far reaching resemblance of the Werner's syndrome to the physiological senility was emphasized. Good reaction to anabolic drugs was described.