Definition and epidemiology
Scurvy is a systemic disease resulting from dietary deficiency of vitamin C (ascorbic acid), leading to impaired collagen synthesis and defective connective tissue formation. Humans, unlike most animals, cannot synthesize vitamin C and depend entirely on dietary sources.
Scurvy is rare in developed countries but persists in at-risk populations. It affects individuals with extreme dietary restriction, including the elderly living alone, patients with psychiatric disorders, chronic alcoholics, and those following restrictive fad diets. Infantile scurvy occurs in infants fed exclusively with unfortified cow's milk or processed formula without vitamin C supplementation. The disease also appears in refugee populations, food-insecure communities, and patients with malabsorption syndromes. A sustained shortfall in dietary vitamin C below the recommended daily intake, maintained for an extended period, is sufficient to produce scurvy. Clinical manifestations typically develop after 1-3 months of vitamin C deprivation.
- Scurvy results from vitamin C deficiency; humans cannot synthesize ascorbic acid.
- Perifollicular hemorrhage and corkscrew hairs are pathognomonic findings.
- Vitamin C is essential for collagen synthesis via prolyl and lysyl hydroxylase enzymes.
- Gingival bleeding occurs only in dentate patients; edentulous patients lack this sign.
- Symptoms develop after 1-3 months of vitamin C deprivation when body stores are depleted.
- Diagnosis is clinical; plasma ascorbic acid <11 μmol/L confirms deficiency.
- Treatment with oral ascorbic acid produces rapid improvement within 24-48 hours.
- Coagulation studies (PT, aPTT) are normal, helping exclude other bleeding disorders.
Etiology and risk factors
The primary cause of scurvy is inadequate dietary intake of vitamin C. Rich sources include citrus fruits, tomatoes, potatoes, leafy green vegetables, bell peppers, and berries. Cooking and food processing destroy vitamin C, which is heat-labile and water-soluble.
Risk factors include:
- Dietary: Restrictive diets excluding fresh fruits and vegetables, tea-and-toast diet in the elderly, exclusive reliance on processed foods
- Social: Poverty, food insecurity, social isolation, homelessness
- Psychiatric conditions: Anorexia nervosa, autism spectrum disorder with food selectivity, schizophrenia with self-neglect
- Substance use: Chronic alcoholism (poor intake, increased requirements)
- Medical conditions: Malabsorption syndromes, inflammatory bowel disease, chronic diarrhea, dialysis (removes water-soluble vitamins)
- Age-related: Elderly with poor dentition, difficulty shopping or cooking
- Infants: Fed exclusively on unfortified cow's milk or improperly prepared formula
- Increased requirements: Smoking, pregnancy, lactation, hyperthyroidism, chronic infections
Chronic disease, cancer, and major surgery may increase vitamin C requirements and deplete body stores more rapidly.
Pathophysiology
Vitamin C (ascorbic acid) is an essential cofactor for enzymes involved in collagen synthesis, particularly prolyl hydroxylase and lysyl hydroxylase. These enzymes hydroxylate proline and lysine residues in procollagen, stabilizing the collagen triple helix structure. Without adequate vitamin C, defective collagen formation affects blood vessels, skin, bone, cartilage, and connective tissue throughout the body.
Key pathophysiological consequences:
- Vascular fragility: Defective collagen in blood vessel walls leads to capillary fragility, easy bruising, and spontaneous hemorrhage
- Impaired wound healing: New collagen cannot form properly, preventing wound repair and causing breakdown of old scars
- Bone abnormalities: Defective osteoid matrix, subperiosteal hemorrhage, and impaired bone formation affect children's growth plates
- Bleeding tendency: Perivascular hemorrhage occurs in skin, mucous membranes, muscles, and internal organs
- Dental problems: Collagen defects in periodontal ligament cause gingival swelling, bleeding, and tooth loss
- Anemia: Impaired iron absorption, chronic blood loss, and defective red cell formation contribute to anemia
Vitamin C also functions as an antioxidant and is required for carnitine synthesis and tyrosine metabolism. Body stores become significantly depleted before symptoms appear; scurvy develops once total body stores fall below a critical threshold. Symptoms typically appear 1-3 months after cessation of vitamin C intake, though this varies with initial stores and ongoing losses.
Clinical features
Early symptoms are nonspecific: fatigue, weakness, irritability, myalgia, and arthralgia. As deficiency progresses, characteristic mucocutaneous and musculoskeletal manifestations develop.
Cutaneous manifestations
- Perifollicular hemorrhage: Hemorrhage around hair follicles, most prominent on lower extremities, pathognomonic sign
- Corkscrew hairs: Fragile, coiled hairs due to defective keratin cross-linking
- Hyperkeratotic papules: Follicular hyperkeratosis with surrounding hemorrhage
- Petechiae and ecchymoses: Easy bruising, spontaneous purpura, particularly on legs and buttocks
- Poor wound healing: Dehiscence of old scars, failure of new wounds to heal
Oral manifestations
- Gingival changes: Swollen, purple, spongy, bleeding gums (in dentate patients)
- Tooth mobility and loss: Periodontal destruction and hemorrhage
- Mucosal bleeding: Spontaneous gingival hemorrhage with minor trauma
Musculoskeletal features
- Bone pain: Subperiosteal hemorrhage causes severe pain, particularly in lower extremities
- Hemarthrosis: Bleeding into joints causing painful swelling
- Muscle hemorrhage: Intramuscular bleeding, hematomas
Systemic features
- Anemia: Multifactorial (impaired iron absorption, blood loss, folate deficiency)
- Edema: Lower extremity edema due to capillary leakage
- Ocular: Subconjunctival hemorrhage, orbital hemorrhage
- Neurological: Neuropathy, depression, Wernicke encephalopathy (if concurrent thiamine deficiency)
Infantile scurvy
Infants present with irritability, pseudoparalysis (reluctance to move limbs due to subperiosteal pain), frog-leg position, costochondral beading, and subperiosteal hemorrhage. The Scorbutic rosary describes prominent costochondral junctions.
Symptoms resolve within days to weeks of vitamin C replacement, though skeletal changes may take months to normalize.
Diagnosis
Diagnosis is primarily clinical, based on characteristic findings in patients with dietary risk factors. Laboratory confirmation supports the diagnosis but should not delay treatment.
Clinical diagnosis
The constellation of perifollicular hemorrhage, gingival bleeding, poor wound healing, and corkscrew hairs in a patient with dietary deficiency is virtually pathognomonic. A thorough dietary history is essential.
Laboratory investigations
Vitamin C levels:
- Plasma ascorbic acid: <11 μmol/L (<0.2 mg/dL) indicates deficiency; <6 μmol/L (<0.1 mg/dL) confirms scurvy
- Leukocyte ascorbic acid: More accurately reflects tissue stores but rarely performed
- Note: Plasma levels fluctuate with recent intake; diagnosis should not rely solely on borderline values in symptomatic patients
Supporting findings:
- Complete blood count: Normocytic or microcytic anemia (multifactorial)
- Iron studies: Low iron despite adequate stores (impaired absorption)
- Coagulation profile: Normal PT, aPTT (helps exclude other bleeding disorders)
- Inflammatory markers: May be elevated nonspecifically
Imaging
Radiographic findings (especially in children):
- Ground-glass osteopenia
- Wimberger ring sign: Dense white line around epiphyses
- Pelkan spurs: Lateral metaphyseal spurs
- Frankel line: Dense metaphyseal line
- Subperiosteal hemorrhage
MRI: May show subperiosteal and soft tissue hemorrhage in unclear cases
Diagnostic response to treatment
Rapid clinical improvement within days of vitamin C supplementation strongly supports the diagnosis. Many clinicians treat empirically based on clinical suspicion without awaiting laboratory confirmation.
Differential diagnosis
Scurvy mimics several hematologic, rheumatologic, and dermatologic conditions:
Bleeding disorders:
- Vasculitis: Henoch-Schönlein purpura, leukocytoclastic vasculitis (palpable purpura, systemic symptoms, different distribution)
- Thrombocytopenia: Immune thrombocytopenic purpura, leukemia (abnormal coagulation studies, systemic features)
- Coagulopathy: Hemophilia, von Willebrand disease (family history, abnormal coagulation studies, joint bleeding)
- Disseminated intravascular coagulation: Acute illness, abnormal PT/aPTT, low fibrinogen
Nutritional deficiencies:
- Vitamin K deficiency: Prolonged PT, bleeding without perifollicular hemorrhage
- Pellagra (niacin deficiency): Dermatitis, diarrhea, dementia
- Zinc deficiency: Acrodermatitis, different skin distribution
Connective tissue disorders:
- Ehlers-Danlos syndrome: Lifelong history, hyperelastic skin, joint hypermobility
- Systemic lupus erythematosus: Positive autoantibodies, multisystem involvement
Other conditions:
- Child abuse: Consider in children with unexplained bruising and fractures; however, radiographic findings and dietary history help differentiate
- Malingering/factitious disorder: Difficult to distinguish; therapeutic trial may help
- Trauma: History and distribution of injuries differ
Key distinguishing features of scurvy: dietary history, perifollicular hemorrhage, corkscrew hairs, gingival bleeding (if dentate), normal coagulation studies, and dramatic response to vitamin C.
Management
Treatment of scurvy is straightforward and highly effective. Symptoms improve within days, though complete resolution takes weeks to months.
Acute treatment
Vitamin C supplementation:
- Adults: Oral ascorbic acid, given at supplementation levels well above the standard dietary allowance, in divided doses
- Children: Weight-appropriate doses of oral ascorbic acid
- Route: Oral preferred; parenteral administration reserved for patients unable to take oral medications or with severe malabsorption
- Duration: Continue until clinical resolution and dietary intake is adequate (typically several weeks to months)
Clinical response
- Acute symptoms: Fatigue, weakness, and muscle pain improve within 24-48 hours
- Bleeding: Gingival bleeding and petechiae resolve within 1-2 weeks
- Ecchymoses: Bruising fades over 2-4 weeks
- Bone pain: Improves within 1-2 weeks
- Anemia: Corrects over several weeks to months
- Skeletal changes: Radiographic normalization takes months
Adjunctive measures
- Nutritional counseling: Education about vitamin C-rich foods and balanced diet
- Treatment of concurrent deficiencies: Many patients have multiple nutritional deficiencies (iron, folate, other vitamins); address comprehensively
- Dental care: Referral for dental evaluation and treatment of periodontal disease
- Address underlying causes: Treat alcoholism, psychiatric conditions, social issues contributing to malnutrition
Long-term management
Dietary modification: Emphasize fresh fruits and vegetables, particularly citrus fruits, berries, tomatoes, peppers, and leafy greens. Patients should consume at least the recommended daily allowance.
Supplementation: Consider long-term low-dose vitamin C supplementation in patients unable to maintain adequate dietary intake (elderly, institutionalized, psychiatric patients).
Monitoring: Follow-up to ensure compliance, dietary adequacy, and resolution of symptoms. Repeat laboratory testing is usually unnecessary if clinical improvement occurs.
Special populations
- Infants: Switch to vitamin C-fortified formula or age-appropriate foods
- Pregnancy/lactation: Higher requirements; ensure adequate supplementation
- Dialysis patients: Supplementation often needed due to losses during dialysis
- Smokers: Increased requirements; recommend higher dietary intake
Guidelines from WHO and national nutritional societies emphasize prevention through adequate dietary intake and targeted supplementation in at-risk populations.
Complications and prognosis
With prompt treatment, scurvy is completely reversible and prognosis is excellent. Without treatment, complications can be severe or fatal.
Complications
Acute:
- Severe hemorrhage: Intracranial hemorrhage, hemopericardium, hemothorax (rare but life-threatening)
- Anemia: Severe symptomatic anemia requiring transfusion
- Infection: Impaired wound healing and immune dysfunction increase infection risk
- Sudden death: Attributed to intracardiac hemorrhage or arrhythmia (rare, historical)
Chronic:
- Bone deformities: Permanent skeletal abnormalities if scurvy occurs during growth
- Dental loss: Permanent tooth loss from severe periodontal destruction
- Chronic wounds: Non-healing ulcers in severely affected patients
- Psychosocial: Depression, social withdrawal exacerbating nutritional deficiency
Prognosis
With treatment:
- Symptoms begin improving within 24-48 hours
- Most clinical manifestations resolve within 2-4 weeks
- Complete recovery expected within 3 months
- No long-term sequelae if treated before permanent damage occurs
- Recurrence prevented with adequate dietary vitamin C intake
Without treatment:
- Progressive weakness, bleeding, and complications
- Historically fatal if untreated
- Modern mortality is extremely rare due to availability of treatment
Prevention
Primary prevention:
- Adequate daily dietary intake of vitamin C through regular consumption of fresh fruits and vegetables
- Proper food storage and minimal cooking to preserve vitamin C
Secondary prevention:
- Supplementation in at-risk populations (elderly, institutionalized, chronic illness, dialysis)
- Nutritional screening in vulnerable populations
- Education about balanced diet for patients with psychiatric disorders or substance abuse
Public health measures:
- Food fortification programs in at-risk communities
- Nutritional support for refugees and food-insecure populations
- Monitoring in institutional settings (nursing homes, psychiatric facilities)
Scurvy remains a preventable disease. Awareness among clinicians is essential for early recognition in at-risk populations.
Scurvy Signs (4 C's): Coiled/Corkscrew hairs, Capillary fragility (perifollicular hemorrhage), Collagen defects (poor wound healing), Child bone changes (subperiosteal hemorrhage)
Practice questions
1. A 68-year-old man with a history of alcohol use disorder presents with fatigue, leg pain, and easy bruising for 2 months. He lives alone and reports eating mostly canned soup and white bread. Examination shows multiple ecchymoses on the lower extremities, perifollicular hemorrhage, and swollen, bleeding gums. Several hairs on his legs appear coiled. Laboratory studies show hemoglobin 9.5 g/dL, platelet count 240,000/μL, PT 12 seconds (normal 11-13), and aPTT 28 seconds (normal 25-35). Which of the following is the most likely diagnosis?
2. A 45-year-old woman with severe depression and restrictive eating habits presents with a 3-month history of progressive weakness, joint pain, and multiple bruises. She reports that old surgical scars have begun to break down. Physical examination reveals numerous petechiae and ecchymoses on the lower extremities, hemorrhage around hair follicles, and poor wound healing. Which of the following enzyme deficiencies best explains her clinical presentation?
3. A 12-month-old infant presents with irritability and refusal to move his legs for 1 week. The parents report he has been fed exclusively with boiled cow's milk since 6 months of age when breastfeeding stopped. Examination shows a pale infant in a frog-leg position who cries when his legs are touched. Radiographs of the lower extremities show ground-glass osteopenia, dense metaphyseal lines, and subperiosteal elevation. Which of the following treatments will most likely lead to rapid improvement?
Frequently asked questions
What causes scurvy?
Scurvy is caused by severe deficiency of vitamin C (ascorbic acid) due to inadequate dietary intake. Humans cannot synthesize vitamin C and must obtain it from diet, primarily fresh fruits and vegetables. Risk factors include restrictive diets, alcoholism, elderly living alone, psychiatric disorders, poverty, and malabsorption syndromes. Vitamin C is essential for collagen synthesis; deficiency leads to defective connective tissue formation affecting blood vessels, skin, bone, and gums.
What are the first symptoms of scurvy?
Early symptoms of scurvy are nonspecific and include fatigue, weakness, irritability, muscle aches, and joint pain. As deficiency progresses over weeks to months, characteristic signs develop: perifollicular hemorrhage (bleeding around hair follicles), easy bruising, petechiae on legs, corkscrew hairs, gingival bleeding and swelling in dentate patients, and poor wound healing. These manifestations typically appear 1-3 months after vitamin C intake ceases.
How is scurvy diagnosed?
Scurvy is primarily diagnosed clinically based on characteristic findings in patients with dietary risk factors. The combination of perifollicular hemorrhage, corkscrew hairs, gingival bleeding, and poor wound healing in someone with inadequate fruit and vegetable intake is virtually diagnostic. Laboratory confirmation uses plasma ascorbic acid levels below 11 μmol/L, though treatment should not be delayed for test results. Coagulation studies are normal, helping exclude other bleeding disorders.
Is scurvy curable?
Yes, scurvy is completely curable with vitamin C supplementation. Treatment with oral ascorbic acid produces rapid improvement, with symptoms like fatigue and muscle pain improving within 24-48 hours. Bleeding manifestations resolve within 1-2 weeks, and complete recovery occurs within 3 months. Prognosis is excellent with prompt treatment, and no long-term complications occur if treated before permanent damage. Prevention requires maintaining adequate dietary vitamin C intake through fresh fruits and vegetables.
Scurvy vs vitamin K deficiency — what is the difference?
Both cause bleeding, but scurvy has normal coagulation studies while vitamin K deficiency shows prolonged PT/INR. Scurvy presents with perifollicular hemorrhage, corkscrew hairs, gingival bleeding, and poor wound healing due to defective collagen synthesis. Vitamin K deficiency causes deep tissue bleeding, hemarthrosis, and gastrointestinal or intracranial hemorrhage due to impaired synthesis of clotting factors II, VII, IX, and X. Dietary history differs: scurvy from lack of fresh produce, vitamin K deficiency from malabsorption or antibiotic use.
Key drugs
Related conditions and differentials
Sources and further reading
StatPearls (NCBI Bookshelf)MedlinePlusWHO ICD-10: E54
Educational content for medical students, prepared by the WhiteCoat Pro editorial team with AI assistance; every page is reviewed by a second AI model for factual errors. It is not medical advice and does not replace the product label, local guidelines or a clinician.