Differential Diagnosis for Hot Scalp
- Single most likely diagnosis
- Seborrheic dermatitis: This condition is characterized by an itchy, flaky scalp and can cause a sensation of heat due to inflammation and irritation.
- Other Likely diagnoses
- Psoriasis: Scalp psoriasis can lead to redness, itching, and a burning sensation, which might be perceived as a hot scalp.
- Eczema (atopic dermatitis): Similar to seborrheic dermatitis, eczema can cause itching, redness, and a sensation of heat on the scalp.
- Dandruff: While often considered a mild condition, severe dandruff can cause significant discomfort and a sensation of heat due to the body's reaction to the fungus that causes it.
- Allergic contact dermatitis: An allergic reaction to hair care products or other substances coming into contact with the scalp can cause itching, redness, and a sensation of heat.
- Do Not Miss (ddxs that may not be likely, but would be deadly if missed.)
- Meningitis: Although rare, meningitis can cause a severe headache and might be accompanied by a sensation of heat or burning on the scalp, among other more severe symptoms.
- Temporal arteritis: This condition involves inflammation of the blood vessels and can cause headache, scalp tenderness, and jaw pain, which might be perceived as a hot sensation on the scalp.
- Neurological disorders (e.g., trigeminal neuralgia): Certain neurological conditions can cause abnormal sensations, including pain or a burning sensation that might be felt on the scalp.
- Rare diagnoses
- Pityriasis amiantacea: A condition characterized by a thick, yellowish scale on the scalp, which can cause discomfort and possibly a sensation of heat.
- Folliculitis: An inflammation of the hair follicles, which can cause itching, redness, and possibly a sensation of heat on the scalp.
- Lupus: Systemic lupus erythematosus can cause a variety of skin symptoms, including a sensation of heat or burning on the scalp, though this is less common.