Types of scabies

Scabies appears in several forms. The type affects how it looks, how contagious it is and how it is treated, so it is useful to know the differences.

Classic scabies The most common form. It has intense itching, small bumps and burrows in the skin folds, with only 10 to 15 mites on the body. It spreads through prolonged close contact.

Crusted scabies (Norwegian scabies) A severe form in which thousands to millions of mites live in thick, scaly, crusted skin. It is seen in people with weak immunity, the elderly, people with disabilities and those on long-term steroids. Itching may be mild, but it is highly contagious and needs strong treatment, often with oral medicine and isolation advice from a doctor.

Nodular scabies Firm, itchy, reddish-brown lumps, often in the groin, genitals and armpits, caused by a strong reaction to mite parts. The lumps may remain for weeks to months after the mites are cleared.

Bullous scabies Rare. Large fluid-filled blisters occur, and it can be mistaken for a blistering skin disease.

Scabies in babies and young children It often involves the face, scalp, palms and soles, and can cause blisters and intense irritability. Treatment must be chosen for age.

Scabies incognito The rash looks altered after steroid cream use, so the diagnosis is delayed and the mite spreads.

Animal scabies Mites from dogs and other animals can cause a short-lived rash in humans, but they do not reproduce on human skin.

Ayurvedic view (interpretive) Texts describe different skin diseases (kushtha) by dosha pattern. These categories do not match the medical types above.

Remember Crusted scabies is an outbreak risk, so anyone with thick crusted skin should be seen promptly by a doctor.