Scurvy: the old sailor's disease that is not gone, the bleeding gums and the bruising, and the vitamin that reverses it
Last updated September 3, 2026.
Scurvy is the disease of severe vitamin C deficiency, and it is not the historical curiosity people assume: it still appears, in elderly people living alone on narrow diets, in people whose diets exclude fruit and vegetables entirely, in severe eating disorders, in alcohol dependence, and in children on extremely restricted diets, sometimes from avoidant eating. Vitamin C is the glue-material vitamin, the body cannot make or store much of it, and without it the collagen that holds blood vessels, gums, skin, and wounds together starts to fail. The picture is distinctive once you know it: bleeding, swollen gums, bruising and small bleeding spots in the skin, wounds that will not heal, rough dry skin, corkscrew hairs, joint pain and swelling from bleeding into them, and a deep fatigue and low mood that often come first. The diagnosis is clinical, the story plus the examination, backed by a vitamin C level. The treatment is the vitamin itself, and it is one of the most satisfying treatments in medicine: symptoms begin improving within days, the fatigue and the gums first, and full recovery over weeks with a normal diet restored. The worth-knowing parts: the deficiency takes months of a very low intake to develop, so it marks a diet that has been narrow for a long time and deserves a gentle, practical look at why; in children the restricted-eating route is the modern story, and the eating problem, not just the vitamin, needs the help; and untreated, scurvy can become dangerous, which is why the classic picture earns a prompt appointment rather than a supermarket fix.
What does it look like?
Fatigue and low mood first, then the tissues that depend on collagen fail: swollen, bleeding gums, easy bruising and small bleeding spots in the skin, especially around hair follicles, corkscrew hairs, dry rough skin, slow-healing wounds and old scars reopening, painful swollen joints, and in children, painful legs and a limp or refusal to walk. It builds over months of very low intake.
Why does it happen?
Vitamin C is needed to build collagen, the structural protein of blood vessels, gums, skin, and bone, and the body cannot make its own or store much. Months of a diet without fruit and vegetables, through poverty, isolation, alcohol dependence, severe eating disorders, or restricted eating in children, drains the stores and the collagen maintenance fails. The modern cases are not rare so much as unrecognized, because the picture is mistaken for aging, depression, or blood disorders before anyone asks about the diet.
How is it treated?
- The vitamin reverses it, fast. Vitamin C replacement, usually tablets, starts improving symptoms within days, the fatigue and gums first, with full recovery over weeks.
- The diet gets rebuilt around the cause. A gentle, practical look at why the intake failed, and dietetic support where the cause is poverty, isolation, eating disorder, or a child's restricted eating.
- The eating problem gets its own help. In children with avoidant eating and in eating disorders, the vitamin fixes the scurvy and the underlying eating condition needs its own treatment, or the scurvy returns.
- The look-alikes get excluded. The bleeding and bruising picture overlaps with blood disorders, which is why the diagnosis belongs to a clinician, not a supplement shelf.
When does it need prompt review?
The classic picture, bleeding gums with unexplained bruising and a very restricted diet, earns a prompt appointment rather than self-treatment, because the blood-disorder look-alikes need excluding and severe deficiency is dangerous. A child refusing to walk with painful legs earns the same. Pymander's escalation routing is built and tested specifically for this class of decision; see the safety architecture working paper.
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Common questions
How did I get a disease from the history books?
By being human after a bereavement, and you are in more company than you think. Scurvy never actually left: the doctors who see it today see it mostly in the recently widowed, the isolated elderly, people in the grip of alcohol dependence or severe eating disorders, and children on extremely restricted diets, the situations where fruit and vegetables quietly fall out of the diet for months. The body stores very little vitamin C and cannot make its own, so the stores drain over a few months of a narrow diet, and two years of toast and soup is comfortably long enough. The fatigue and low mood often arrive first, months before the gums and bruises, which is why the diagnosis gets missed, the early symptoms look like depression, or grief, or just aging. You got it the way modern people get it, and the only unusual thing is how long it took to be named.
How quickly will the vitamins fix it?
Faster than almost anything else in medicine, and the timeline is worth knowing so you can feel it working. The fatigue and the gum bleeding typically begin improving within days of starting the tablets, the first sign that the collagen factories are running again. The bruising and the skin changes fade over a few weeks. The deeper repairs, the blood vessel walls, the wounds, the joints, complete over the following weeks to months. Full recovery is the expected outcome, not the hoped-for one, because the deficiency damages nothing that the vitamin cannot rebuild. The one caution: the vitamin fixes the scurvy, and the diet rebuild is what keeps it fixed, so the tablets and the plate are the two halves of the same treatment.
I feel embarrassed, like I let myself go in a ridiculous way.
The embarrassment is the part worth answering directly, because it is the piece most likely to slow your recovery. Here is the reframe the doctors who see this would give you: grief dismantles exactly the habits that keep a person fed, the cooking for two, the table, the rhythm of meals, and appetite without its reason produces toast and tea. The clinical word for your last two years is grief, not ridiculousness, and the pattern you are in is recognized enough to have its own literature. The other half of it: some of what you have been attributing to the grief, the flatness, the exhaustion, may partly have been the deficiency itself, which means the story is about to improve on two fronts at once. You did not let yourself go. You were grieving, and your body kept the accounts. Now the accounts are being settled, and that is the whole of it.
What should I actually eat? Cooking for one feels pointless.
The goal is a plate you will actually keep, not a perfect one, and the vitamin C sources that survive the cooking-for-one kitchen are the good news: a glass of fruit juice with breakfast, the humble potato, which is a good source and already your friend, tinned tomatoes in the soup, frozen peas and other frozen vegetables, which need no chopping and never rot in the drawer, and the occasional piece of fruit that requires nothing but a rinse. Small anchor meals beat ambitious recipes. And the part that works better than any food: the lunch clubs and community meals, which exist precisely for the eating-alone problem, because appetite is social and returns fastest in company. One brave phone call to the local one is worth more than a fortnight of resolve. The tablets cover the gap while the plate rebuilds.
Could the exhaustion and low mood have been the scurvy all along?
Partly, quite possibly, and that is the optimistic reading, not a dismissal of the grief. The fatigue and the low mood of vitamin C deficiency arrive months before the gums and the bruising, and they blend so completely into bereavement and aging that nobody, including most doctors, separates them until the bleeding gums force the question. The way to find out which part was which is the next few weeks: as the vitamin takes hold, watch what lifts. The flatness that lifts with the tablets was the deficiency; what remains is the grief, and the grief deserves its own conversation with the doctor, because two years of a shrinking kitchen and a shrinking world is worth more than endurance. Both halves are treatable, and you are already holding the treatment for one of them.
How do I make sure it never comes back?
The relapse-proofing is three small habits rather than a regime. The daily source: one reliable vitamin C habit you do not have to think about, the juice with breakfast, the potatoes most days, the frozen vegetables with whatever the meal is, because the body stores so little that it is the daily drip, not the occasional salad, that keeps the tank full. The social meal: the lunch club or the standing arrangement with a friend or family member, because the appetite follows the company, and the loneliest meal is the one that becomes toast. And the honest flag: if the eating narrows again, if the gums bleed again, if the exhaustion creeps back, that is a prompt appointment, not a wait, because you now know exactly what that picture is called and how fast it is fixed. The knowledge you have now is the protection; the deficiency only thrives unrecognized.