Ichthyosis vulgaris is one of the most common genetic disorders caused by a single gene.

Known causes of collodion baby include ichthyosis vulgaris and trichothiodystrophy.

The most common type of ichthyosis is ichthyosis vulgaris, accounting for more than 95% of cases.

Ichthyosis vulgaris, an inherited skin condition.

Over 50% of people with ichthyosis vulgaris suffer from some type of atopic disease such as allergies, eczema, or asthma.

Another common condition associated with ichthyosis vulgaris is keratosis pilaris (small bumps mainly appearing on the back of the upper arms).

Ichthyosis acquisita (or "acquired ichthyosis") is a disorder clinically and histologically similar to ichthyosis vulgaris.

Individuals with truncation mutations in the gene coding for filaggrin are strongly predisposed to a severe form of dry skin, ichthyosis vulgaris, and/or eczema.

It can be a manifestation of lichen planus, psoriasis, alopecia areata, immunoglobulin A deficiency, atopic dermatitis, and ichthyosis vulgaris.

Diabetes has not been definitively linked to acquired ichthyosis or ichthyosis vulgaris; however, there are case reports associating new onset ichthyosis with diabetes.

This means that a single mutation would cause a mild case of ichthyosis vulgaris and mutations to both copies of the gene would produce a more severe case.

Ichthyosis vulgaris (also known as "Autosomal dominant ichthyosis," and "Ichthyosis simplex") is a skin disorder causing dry, scaly skin.

Ichthyosiform sarcoidosis is a cutaneous condition resembling ichthyosis vulgaris or acquired ichthyosis, with fine scaling usually on the distal extremities, by caused by sarcoidosis.

Around 10% of the population have some detrimental mutations to the profilaggrin gene that is also linked to atopic dermatitis (another skin disorder that is often present with ichthyosis vulgaris).

The severity of symptoms can vary enormously, from the mildest types such as ichthyosis vulgaris which may be mistaken for normal dry skin up to life-threatening conditions such as harlequin type ichthyosis.