Updated on September 7, 2026. This is a field ID page, not a diagnosis. A bald deer is not automatically mange, and mange is not CWD. Report a sick-looking animal to your state wildlife agency; do not try to treat a wild deer yourself.
If a deer has patchy hair loss, thickened or wrinkled skin, and small pustules on the head and neck: that is the classic look of demodectic mange in white-tailed deer. The mite is Demodex odocoilei. It lives in hair follicles. It is not a herd-killer. Skin it, and the meat is a skin problem, not a muscle problem — but skip any animal that also looks wasted, lame, or odd-acting.
This page is the mange child under WorldDeer safety. The disease table of contents is deer diseases. CWD, EHD, and bluetongue stay on their own URLs. This page does not swallow them.
Facts (sourced)
| What | Fact | Source |
|---|---|---|
| Usual cause in whitetails | Demodex odocoilei, a follicle mite found only on white-tailed deer. Small numbers live on healthy deer. Clinical mange is uncommon. | Texas Parks & Wildlife; National Deer Association, 2021 |
| How rare in diagnostic files | Southeastern Cooperative Wildlife Disease Study, 1975–2012: 2,569 deer examined; 88 (3.4%) had bacterial or parasitic skin disease; 37 of those were Demodex. More common in deer older than 2 years; most often detected in fall. | Nemeth et al., 2014, Veterinary Pathology |
| Herd impact | A problem for rare individuals, not a die-off. Most documented mange deer were otherwise in good to excellent condition. Poor-condition animals had other health issues. | NDA, citing SCWDS and the SE field manual |
| Sarcoptic mange | The fox/coyote/bear mite (Sarcoptes scabiei). Reported in more than 100 mammal species. Uncommon in deer; when found, usually mild and localized. | Pennsylvania Game Commission; Indiana DNR |
| Not mange: Pacific Northwest hair-loss syndrome | Eurasian chewing lice Damalinia (Cervicola) on black-tailed deer. First reported in western Washington in 1995. Yellow or white patches along the sides from over-grooming. Heaviest late winter–early spring. | Washington Department of Fish & Wildlife |
| Meat | Lesions are in the skin, not the muscle. Once skinned, venison from an otherwise healthy animal is considered edible. Do not eat a deer that looks systemically sick. | TPWD; University of Missouri Extension G9489 |
| People and pets | Demodex mites are host-specific. Deer demodectic mange does not jump to people or dogs. Animal strains of S. scabiei can cause a short, self-limiting itch (about 10–14 days). Wear gloves on any mangy carcass. | Cornell Wildlife Health Lab; CDC scabies |
| Last checked | September 7, 2026 | Agency pages and papers linked in this table |
If a number cannot wear a link, it does not belong in that table. I did not invent a 2026 statewide case count. Agencies do not publish a national mange dashboard the way they do for CWD.
What mange on a deer actually is
Mange is a mite disease of the skin. In North American deer, the mite you are almost always talking about is not the “mangy dog” mite. It is a cigar-shaped follicle mite, Demodex odocoilei, described as host-specific to white-tailed deer. Texas A&M’s diagnostic lab still sees it: in August 2024 they reported dilated hair follicles packed with Demodex sections in a deer submitted with firm tan skin nodules, and named D. odocoilei as the species most often found in whitetails, including a prior eastern-Texas animal.
Those mites are normal skin fauna. They live in follicles and sebaceous glands. Cornell’s wildlife health lab puts it plainly: Demodex mites inhabit the skin of mammals and usually cause no clinical illness in a healthy host. Disease shows up when mite numbers explode in an animal that is already stressed, hungry, or sick. Transmission is thought to run dam-to-fawn during nursing and grooming, not as a bedding-area plague the way sarcoptic mites move through fox dens.
Mule deer and elk can get demodectic mange too. Pennsylvania Game Commission lists both, plus white-tailed deer, among species with reported demodicosis. Notoedric mange — the old page on this URL mixed it in — is a squirrel story. Notoedres centrifera is host-specific to squirrels. It is not a deer mite. Do not diagnose a bald buck as “notoedric.”
What it looks like in the field
The National Deer Association published a July 1, 2021 photo of an Alabama doe that is the textbook case: hair gone and skin thickened or wrinkled, especially on the neck and head. Up close, the skin is dotted with small pustules. Each pustule is a follicle or gland stuffed with mites. SCWDS’s 37 confirmed cases showed patchy to generalized hair loss over the head, neck, limbs, and trunk, with crusts and cutaneous nodules under the microscope.
WDFW’s description of true mange — the rare individual, any season — is hair loss over most of the body plus thickening, wrinkling, and darkening of the skin, often with a foul odor from secondary bacteria and yeast. That odor is a useful split from a spring molt. A molting deer looks scruffy. A mangy deer looks like leather.
Itching, rubbing, and secondary bacterial infection happen. That is why a badly infested deer can look worse than “just bald.” It is still a skin disease. It is not the stumbling, drooling, vacant-eyed animal you report as possible CWD. Use CWD deer symptoms for that pattern, and how to get a deer tested for CWD if you tagged one in a surveillance zone. Late-stage CWD can leave a shaggy coat. That is wasting plus a coat, not pustules on the neck.
The lookalikes people call mange
Most “mangy deer” photos sent to biologists are not mites. Walk the list before you post the picture.
Normal molt
Deer shed twice a year: winter coat in spring, summer coat in late summer. WDFW’s mule-deer example is the patchy, ragged look everyone photographs in August. Hair comes out in sheets. The coat underneath looks normal. The deer is not skinny, not crusted, not smelling like a wet dog. If it is September and the animal is otherwise fat, it is molting.
Pacific Northwest hair-loss syndrome (lice, not mites)
This is the one the old mange pages mash together, and it is a different disease. Hair-loss syndrome of black-tailed deer is a heavy infestation of Eurasian chewing lice, Damalinia (Cervicola) species. WDFW dates the first western-Washington reports to 1995. The lice’s normal hosts are European and Asian deer and antelope, which barely notice them. Blacktails overreact. They itch, they over-groom, they pull the guard hairs, and they end up with yellow or white patches along the sides. Infestations peak late winter and early spring. The lice are now throughout blacktail range in western Washington and western Oregon. WDFW started getting Yakima-area reports — east of the Cascades — in 2003.
Elk in Washington can carry the same lice without the dramatic hair loss. The lice do not infest people or livestock. Captive deer have been cleared with medication; there is no practical way to dose a free-ranging herd. That is why a blacktail on the wet side of the Cascades with yellow flanks in March is a lice story, not a Demodex story. Hunt context for that country lives on Washington deer hunting.
Winter ticks
Winter ticks (Dermacentor albipictus) cause hair loss on deer, elk, and especially moose. WDFW notes the loss is usually on the neck and shoulders — the spots the animal cannot groom — and that engorged ticks drop in early spring. Moose can carry so many ticks they lose hair over the whole body and die. A November deer with a rubbed neck is often ticks, not mites. Ticks on deer are a different ecology than mange; the Lyme question is answered on do deer get Lyme disease (short version: deer do not get Lyme, they feed the ticks). The tick–deer relationship is on deer and ticks.
Rain rot, warts, and summer viruses
In the same SCWDS skin series, Dermatophilus congolensis (dermatophilosis, “rain rot”) was the second most common diagnosis: 19 of 88 skin-disease deer, often young males found dead, with crusts on the face, ears, and lower legs. Cutaneous fibromas — deer warts — are a virus. They look like dark lumps, not like leathered bald skin, and they come off with the hide. Late-summer deer dead in a farm pond are EHD or bluetongue (BTV), not mange. Those are midge viruses. They swell the head, turn the tongue dark, and put feverish deer in the water. Different season, different carcass.
Does mange kill deer? Does it wreck a herd?
SCWDS and NDA both refuse the herd-collapse story. Of 2,569 deer that hit the University of Georgia diagnostic lab over 37 years, 37 had demodectic mange. Half of those 37 arrived in the last five years of the study (2008–2012). SCWDS said that could be better surveillance, not a true surge. Most were hunter-harvested or killed for necropsy (32 of 37). Most were in good to excellent flesh. The poor ones had other problems. NDA’s line, from the southeastern field manual, is the one I use: mange is a problem for a few rare individuals. It is not a herd problem.
Indiana DNR says the same in fewer words: mange can occur in white-tailed deer but is uncommon there. Their trapper data is the useful contrast — 3–6 percent of harvested coyotes and 2–5 percent of harvested red foxes show mange. That is a canid disease with a deer footnote. Pennsylvania treats sarcoptic mange as a fox, coyote, wolf, and increasingly black-bear problem. Demodex in a deer is the odd animal whose immune system already slipped.
Can a deer survive it? Yes. PGC notes many affected animals resolve mange without treatment if the immune system comes back online. Wild deer are not darted and dosed. A suburban deer you “save” with over-the-counter livestock ivermectin is how people get cited. Cornell’s New York wildlife-health program is blunt: treating wildlife without veterinarian oversight is illegal in New York. Other states are not a DIY loophole. Report it. Leave it.
Can you eat a deer with mange?
Texas Parks & Wildlife: the lesions are confined to the skin and do not affect the muscle. Once the animal is skinned, the meat is edible. Missouri Extension says the same, and adds that mange is not a human concern. NDA agrees the venison is in theory safe if the deer looks healthy under the hide, then immediately says they do not recommend eating a serious clinical case because those animals often have other problems.
That is the honest split. Skin-only, animal otherwise fat: skin it, wash your hands, eat it. Animal skinny, crusted, smelling, or acting wrong: do not. You cannot see CWD on a cutting board. If you are in CWD country, test it. What the meat does and does not look like is on what CWD looks like in deer meat. Field work is how to field dress a deer. Wear gloves either way. PGC’s handling note is the one I follow: gloves, wash thoroughly, and freeze a mangy carcass before anyone scrapes it for ID, because freezing kills the mites.
Can people or dogs get it?
Demodex odocoilei is a deer mite. Indiana DNR’s demodectic-mange paragraph is the right level of caution: those mites are host-specific; a dog Demodex does not become a deer Demodex and the reverse is not a yard emergency. People have their own Demodex species. You do not catch “deer mange” by walking the same trail.
Sarcoptic mange is the exception that keeps the glove rule. Sarcoptes scabiei is not picky. PGC and Cornell both say people can pick up animal varieties and develop a short, self-limiting infestation that lasts about 10–14 days. Higher-risk jobs are the obvious ones: rehabilitators, trappers, biologists, slaughterhouse workers, pet owners who handle a mangy fox. Human scabies is a different, people-adapted strain; CDC’s page is the medical source, not a wildlife blog. If you handled a crusted carcass and you are itching, call a clinician. Do not put livestock pour-on on your arms.
Dogs get sarcoptic mange from foxes and coyotes far more often than from deer. Keep the dog off wildlife carcasses. A suburban deer in the hostas is a garden problem, not a scabies outbreak — what deer eat and deer-proof garden cover that. Do not feed the deer to “help” a bald one. Feeding piles animals on top of each other, which is how the diseases that actually move through a herd — CWD especially — get a free ride.
What to do if you think a deer has mange
- Do not walk up to it. A sick deer can still kick. A “tame” deer in a yard is more likely CWD, EHD, or habituation than a mite you can pet away.
- Photograph from a distance. Whole body, head and neck, and one shot that shows whether the animal is fat or wasted. Note the date, town, and whether it is molting season.
- Call the state wildlife agency or use that state’s sick-wildlife form. Indiana’s is on.IN.gov/sickwildlife. Other states have a district biologist or a CWD/sick-deer hotline. One photo of a clinical case is useful. A Facebook argument is not.
- If you shot it and the hide looks like leather but the deer was otherwise healthy, skin it with gloves, keep the meat cool, and do not take high-risk parts (head, spine) across a CWD line. If it also looks sick inside, bag it and call the agency before you butcher.
- Do not dose it. Ivermectin shows up in captive-cervid and rehab protocols because a veterinarian can repeat the dose. It is not a corn-feeder additive. Cornell: oral ivermectin is not typically used in free-ranging wildlife because it has to be given more than once.
If the deer is in the road, that is a collision, not a disease call. Use what to do if you hit a deer.
Captive deer and “treatment”
On a licensed cervid farm, mange is a veterinary case. Medications exist. Cornell lists oral ivermectin with repeat doses weeks apart, and notes that some long-acting topicals may work better. PGC treats captured black bears when less than half the body is affected. None of that is a backyard protocol. The Game Commission also says shooting every mangy-looking animal is a poor control plan: mites are already widespread before anyone notices clinical illness, and the disease is more likely to establish in high-density populations. That is a habitat and density argument, not a reason to snipe the bald doe in the subdivision.
The first published Texas demodectic-mange deer was a 6-year-old buck captured at Elkins Lake, Walker County (Turner and Cano, 2008, Journal of Medical Entomology). The 2024 TVMDL case is a reminder the mite is still here, still a biopsy diagnosis, still not a Texas herd crisis. Several southeastern cases have been seen over the years. “Particularly in the southeastern United States” in that lab write-up matches the SCWDS geography: 12 states, 31 counties, mostly the Southeast, with records as far as Delaware, Maryland, and west into the Plains in the older literature.
FAQ
Is mange the same as CWD or “zombie deer”?
No. Mange is mites in the skin. CWD is a prion in the brain and lymph nodes. A mangy deer is bald and crusted. A clinical CWD deer is thin, vacant, and unafraid. Search-language CWD lives on what is zombie deer disease. If you only remember one split: you can skin mange off. You cannot skin CWD off.
Why does that deer look so ragged in March?
West of the Cascades, think lice (hair-loss syndrome) on blacktails. Everywhere else, think winter ticks on the neck, then spring molt. Demodectic mange is year-round and uncommon, and the skin itself looks wrong — thick, wrinkled, often pustular — not just missing hair.
Can I catch scabies from a deer?
Not from typical deer demodectic mange. Possible, briefly, if you handle a carcass with Sarcoptes, which is the fox and coyote mite and only rarely documented on deer. Gloves, wash, and a doctor if you are still itching after two weeks. CDC’s scabies page is for people-to-people scabies, which is the common human disease.
Should I stop hunting an area where I saw a bald deer?
No. One clinical case is not a closed unit. It is a photo for the biologist. Keep hunting the same woods you already planned. If the animal you tag looks sick, do not eat it, and submit it. Density and bait piles matter more for the diseases that actually scale — CWD, and in late summer, EHD.
Do I need to treat my yard?
You cannot treat wild mites in a lawn. Stop feeding. Keep the dog in. A fence that actually works is an 8-foot discussion on the garden hub, not a mite spray. Report the deer. Then leave it alone.
Sources
- Pennsylvania Game Commission — Mange
- Cornell Wildlife Health Lab — Mange (NYS Wildlife Health Program)
- Texas Parks & Wildlife — white-tailed deer disease FAQ
- Indiana DNR — Mange
- WDFW — Hair-loss syndrome in deer
- National Deer Association — “Deer mange looks bad,” July 2021
- Nemeth et al., 2014. Demodectic mange… in free-ranging white-tailed deer, 1975–2012. Veterinary Pathology 51:633–640
- Texas A&M Veterinary Medical Diagnostic Laboratory — Demodex case, August 12, 2024
- University of Missouri Extension G9489 — diseases and parasites of white-tailed deer
- CDC — About scabies
Parent hub: safety. Disease index: deer diseases. Species overlap: white-tailed deer and mule deer.
