Prevention of scurvy - causes, symptoms, treatment

Scurvy represents a severe metabolic disorder arising from chronic and profound ascorbic acid (vitamin C) deficiency within the human body. In contemporary times, instances of this condition are exceedingly rare owing to the widespread availability of vitamin-rich foods and the option of pharmacological supplementation. Historically, however, particularly during the era of extensive maritime expeditions, the disease assumed epidemic proportions among ship crews. The primary cause was the inability to preserve fresh sources of vitamin C—such as citrus fruits and leafy vegetables—which, under voyage conditions, underwent rapid microbial decomposition and nutritional degradation. An additional risk factor was the absence of access to synthetic vitamin preparations, which, combined with a monotonous diet devoid of fresh produce, led to the development of fully symptomatic scurvy. This condition exerts a deleterious effect on multiple bodily systems, including the synthesis of collagen—a critical structural protein in connective tissue—manifesting in symptoms such as gum bleeding, tooth loss, and impaired wound healing.

Scurvy represents a clinical manifestation of profound, sustained ascorbic acid (vitamin C) deficiency within the human body, a condition that arises from a multifactorial interplay of dietary, socioeconomic, and pathological influences. Primary causative factors include a monotonous, nutrient-deficient diet lacking adequate quantities of fresh fruits and vegetables—the principal dietary sources of this essential micronutrient. Industrial food processing techniques, particularly thermal treatments such as pasteurization or high-temperature cooking, induce significant degradation of vitamin C content, thereby exacerbating deficiency risks. Equally critical are psychiatric eating disorders, notably anorexia nervosa and bulimia nervosa, which entail severe restriction or purging of vitamin-C-rich foods. Socioeconomic deprivation—particularly in low-resource regions such as sub-Saharan Africa or South Asia, where access to fresh, unprocessed produce is severely limited—further compounds the problem. Highly restrictive elimination diets that exclude vitamin-C-containing foods or provide insufficient quantities to meet daily requirements also contribute to the condition’s development. Malnutrition, frequently observed in chronic alcoholism or as a consequence of advanced age, creates additional vulnerability. Lastly, certain medical conditions that impair vitamin C absorption—such as Crohn’s disease, acute dyspepsia, dialysis-dependent states, or malabsorption syndromes—substantially elevate susceptibility to scurvy.

The vast majority of symptoms associated with this condition stem directly from ascorbic acid deficiency, which disrupts collagen synthesis within the body. Initial clinical signs typically emerge approximately three months following inadequate dietary intake of this essential nutrient. Among the most distinctive manifestations are spontaneous mucosal hemorrhages, inflammatory gingival hyperplasia, initial loosening followed by complete tooth loss, delayed wound healing, pathological bone fractures, and persistent musculoskeletal pain. Patients frequently report generalized weakness, lethargy, and in certain instances, depressive symptoms. Progressive symptoms include dermatological alterations characterized by red-blue petechiae surrounding hair follicles, resembling contusions, which may coalesce to form extensive ecchymoses. Additionally, structural weakening of hair follicles leads to excessive hair loss, while ophthalmologic complications such as dry, irritated conjunctivae, photophobia, blurred vision, and— in severe cases—subconjunctival hemorrhages or optic nerve sheath bleeding may occur. Anemia develops due to impaired iron absorption, a direct consequence of low vitamin C levels, and may be exacerbated by internal bleeding, further depleting iron reserves. Musculoskeletal disorders present as joint pain caused by intra-articular hemorrhages, resulting in significant discomfort. Cardiovascular and respiratory involvement may include shallow breathing, hypotension, chest pain, and in advanced stages, circulatory shock potentially leading to fatal outcomes. In the terminal phase of the disease, peripheral neuropathies and convulsive seizures may manifest.

The therapeutic process and preventive measures for scurvy are characterized by remarkable simplicity. The cornerstone of management lies in ensuring adequate ascorbic acid intake through a balanced diet rich in fresh plant-based foods. The most valuable sources of this vitamin include citrus fruits such as lemons, oranges, and grapefruits, as well as blackcurrants, kiwi, papaya, tomatoes, strawberries, carrots, broccoli, potatoes, spinach, and various pepper varieties. Among animal-derived products, oysters and beef liver exhibit the highest concentrations of vitamin C. In cases of severe deficiency where dietary intake proves insufficient, pharmacological supplementation with vitamin preparations is recommended. It is important to note that scurvy has become exceedingly rare in modern times and typically develops in pathological contexts such as eating disorders, malabsorption syndromes, or overly restrictive elimination diets. Fortunately, both treatment and prevention revolve around systematically addressing ascorbic acid deficiencies. To minimize the risk of clinical manifestations, regular consumption of fresh fruits and vegetables—natural and highly effective sources of this essential vitamin—is strongly advised.