Skin & Hair Knowledge
Your skin and hair tell a story — we're here to help you understand it. Explore conditions, learn what to look for, and track changes over time with Piel AI.
- Acral Nevus
- Actinic Keratosis
- Allergic Urticaria
- Alopecia Areata
- Basal Cell Carcinoma (BCC)
- Bowen's Disease (SCC In Situ)
- Cystic Acne
- Eczema (Atopic Dermatitis)
- Epidermolysis Bullosa
- Erythema Multiforme
- Flat Warts
- Freckles (Ephelides and Solar Lentigines)
- Fungal Infections (Mycosis)
- Genital Herpes
- Halo Nevus
- Hemangioma (Infantile)
- Herpes Simplex (Cold Sores / Oral & Facial HSV)
- Herpes Zoster (Shingles)
- Hidradenitis Suppurativa
- Hives
- Keratoacanthoma
- Lentigo Maligna Melanoma
- Lichen Planopilaris (Scarring Alopecia)
- Lichen Planus
- Linear Lichen Planus
- Lupus (Systemic Lupus Erythematosus)
- Melanocytic Nevus (Mole)
- Milia (Milium)
- Molluscum Contagiosum
- Onychomycosis (Nail Fungus)
- Open Comedones (Blackheads)
- Pachyonychia Congenita
- Pemphigus
- Pityriasis Rosea
- Pityriasis Rubra Pilaris (Devergie's Disease)
- Pityriasis Versicolor (Tinea Versicolor)
- Pityriasis Versicolor (Tinea Versicolor)
- Plantar Wart
- Psoriasis Vulgaris (Plaque Psoriasis)
- Pustular Acne
- Pustular Psoriasis
- Pyogenic Granuloma
- Rosacea
- Scleroderma
- Skin Mycosis (Fungal Skin Infection)
- Spitzoid Melanoma
- Squamous Cell Carcinoma (SCC)
- TSW - Topical Steroid Withdrawal
- Vitiligo
- Wart Vulgaris (Common Wart)
The Skin & Hair Knowledge hub groups plain-language explainers for spots, rashes, pigment changes, and hair loss patterns people search for every day. Each entry summarizes how a concern might look and feel, which body systems are commonly involved, and the red-flag symptoms that warrant urgent medical attention.
Piel AI is built for ongoing self-monitoring: you can photograph the same area over time, compare progress in structured reports, and bring better documentation to your clinician. Nothing here replaces an exam or diagnosis; instead, these pages help you build vocabulary, set expectations, and know when to escalate care.
Use the search field to jump to a condition by name, or scroll the full alphabetical list. Selecting a page reveals severity nuances, example imagery with attribution, differentials to discuss with a dermatologist, and practical guidance on follow-up.