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Leg rash Assessment Questionnaire

Questions Your Doctor May Ask - and Why!

During a consultation, your doctor will use various techniques to assess the symptom: Leg rash. These will include a physical examination and possibly diagnostic tests. (Note: A physical exam is always done, diagnostic tests may or may not be performed depending on the suspected condition) Your doctor will ask several questions when assessing your condition. It is important to openly share any pertinent information to help your doctor make an accurate diagnosis.

It is also very important to bring an up-to-date list of all of your all medical conditions, medications including dosages, and names of numbers of any specialist you see.

Create your printable checklist by answering questions that your doctor may ask below:

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  1. How long have you had the leg rash?

    Why: to determine if acute or chronic.

  2. Where on the legs is the rash and where did it start?

    Why: diagnosis may be helped when the rash is in a specific area e.g. typical lower leg rashes include keratits pilaris, erythema nodosum, nummular dermatitis, stress dermatitis, necrobiosis lipoidica; typical rashes on the front of the knees include psoriasis and dermatitis herpetiformis; a typical rash on the back of the knees is atopic dermatitis.

  3. Is the rash on any other part of the body?

    Why: i.e. localized to legs or widespread? - If the rash is widespread, is it distributed centrally, peripherally or both.

  4. Contact with anyone that also has a rash?

    Why: e.g. may suggest scabies, chicken pox, impetigo.

  5. Past history of skin disorders?

    Why: e.g. atopic dermatitis (eczema), hives, scabies, dermatitis herpetiformis, asteatosis (dry skin). Eczema is usually a chronic and relapsing skin condition.

  6. Trigger factors?

    Why: e.g. soap, frequent washing, chlorinated water, bubbles baths, sweating (because it is drying), sand pits, winter months, extremes of hot and cold weather, emotional stress, wool clothing or blankets, chemical disinfectants, detergents, scratching or rubbing, pregnancy, menstruation, various food stuffs.

  7. Have you worn any new clothing recently?
  8. Have you been exposed to anything different recently?
  9. Do you have an allergic tendency?

    Why: e.g. asthma, hay fever.

  10. Past medical history?

    Why: e.g. Celiac disease may be associated with dermatitis herpetiformis; presence of allergic type conditions such as asthma, hives and hay fever; varicose veins may suggest varicose eczema (patches of dry scaly skin that overlie leg varicose veins); Erythema nodosum may be associated with sarcoidosis, inflammatory bowel disorders (Crohn's disease and ulcerative colitis) and some infections (streptococcal, tuberculosis, leprosy and fungal infections); necrobiosis lipoidica is often associated with diabetes mellitus.

  11. Medications?

    Why: some medications may cause sensitivities such as aspirin, morphine and codeine.

  12. Known allergies?

    Why: e.g. food allergies, insect allergies, drug allergy, plants (grevillea, poison ivy), rubber, resins, coral, perfumes, dyes, metal salts (nickel, chromate).

  13. Family history?

    Why: e.g. allergies, psoriasis, eczema.

  14. Occupational history?

    Why: important with respect to allergic contact dermatitis e.g. contact with resins, rubber, latex, dyes.

  15. Is the rash itchy, and if so is the itch mild, moderate or severe?

    Why: e.g. a very itchy rash may suggest hives, atopic dermatitis, scabies, skin lice, insect bites, chicken pox, dermatitis herpetiformis; a mild to moderate itchy rash may suggest tinea, psoriasis, drug eruption or lichen simplex.

  16. Fever?

    Why: may suggest chicken pox, exfoliative dermatitis, severe allergic contact dermatitis (e.g. from a strong allergen such as poison ivy); eczema herpeticum.

  17. Symptoms of atopic dermatitis (eczema)?

    Why: e.g. itchy, red, dry, scaling, cracked skin. The typical distribution changes as the person grows older. In infants the rash is usually on the cheeks of the face, the folds of the neck and scalp. It may then spread to the limbs and groin. During childhood a drier ad thicker rash develops in front of the elbow, behind the knees and on the hands and feet, which may be dry, itchy, cracked and painful. Rarely does eczema have an adult onset.

  18. Symptoms of allergic contact dermatitis?

    Why: e.g. may range from faint redness to severe swelling, symptoms are often worse in area around the eyes, genitals and on hairy skin, symptoms are least on hairless skin such as palms and soles. Allergic contact dermatitis is usually confined to the site of exposure to the allergen.

  19. Symptoms of nummular (discoid) eczema?

    Why: e.g. red, coin-shaped patches which are crusted, scaly and itchy. Often symmetrical and occurring mainly on the legs but also the buttocks and trunk.

  20. Symptoms of asteatotic dermatitis?

    Why: e.g. very itchy dry skin condition that occurs on the legs of elderly people especially in winter and results in a dry "crazy paving" pattern.

  21. Symptoms of psoriasis?

    Why: e.g. red lesions that enlarge and develop a silvery scale. The commonest sites are the backs of the elbows and knees, then the scalp, sacral areas, genital and nails.

  22. Symptoms of dermatitis herpetiformis?

    Why: e.g. extremely itchy condition with vesicles (fluid filled blisters less than 1 cm in diameter) mainly over the elbows and knees but may also occur on the trunk, buttocks and shoulders. Associated with Celiac disease.

  23. Symptoms of chronic venous insufficiency on lower legs ?

    Why: e.g. leg swelling, darkened skin, inflammation of the skin, possible ulceration on the lower legs - may suggest "varicose eczema" which is characterized by patches of dry scaly skin that overlie leg varicose veins.

  24. Symptoms of erythema nodosum?

    Why: e.g. bright red, raised, tender nodules (circumscribed palpable mass on the skin surface, less than 1 cm diameter) on the shins. The nodules may appear on the thighs and the arms also. Adult females are typically affected. May be associated with sarcoidosis, inflammatory bowel disorders, some medications and some infections.

  25. Symptoms of necrobiosis lipoidica?

    Why: e.g. sharply circumscribed, multicolored (red, yellow, brown) plaques (flat topped palpable mass larger than 1cm diameter) occurring on the front and sides of the lower legs. It is often, but not always associated with diabetes mellitus.

Conditions listing medical symptoms: Leg rash:

The following list of conditions have 'Leg rash' or similar listed as a symptom in our database. This computer-generated list may be inaccurate or incomplete. Always seek prompt professional medical advice about the cause of any symptom.

Select from the following alphabetical view of conditions which include a symptom of Leg rash or choose View All.


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