Is the skin looks like fish scale is a disease?

Yes, the condition where the skin looks like fish scale is most likely a skin disease known as Ichthyosis. Ichthyosis is a group of genetic skin conditions that are characterised by dry, scaly, and thickened skin. It can range in severity from mild to severe and can affect people of all ages. There are different types of Ichthyosis, each with its own specific symptoms and genetic cause. Some common types include:

1. Ichthyosis Vulgaris: This is the most common type of Ichthyosis and is inherited in an autosomal dominant manner. It usually presents in early childhood and is characterised by dry, scaly skin that may appear fish-like.

2. X-Linked Ichthyosis: This type is inherited in an X-linked recessive manner, meaning males are more commonly affected than females. It presents in early infancy and is characterised by severe scaling, redness, and inflammation of the skin.

3. Lamellar Ichthyosis: This rare type of Ichthyosis is inherited in an autosomal recessive manner and is characterised by the presence of large, dark, polygonal scales that resemble fish scales.

4. Congenital Ichthyosiform Erythroderma (CIE): This severe type of Ichthyosis is present from birth and is characterised by widespread redness and scaling of the entire body. It can also be associated with other health problems.

5. Recessive Ichthyosis with Blistering (RIB): This rare type of Ichthyosis is characterised by the presence of blisters in addition to scaling. It is inherited in an autosomal recessive manner.

If you or someone you know is experiencing skin that resembles fish scales, it is important to consult a dermatologist for an accurate diagnosis and appropriate treatment. The specific treatment may vary depending on the type and severity of Ichthyosis.