Crust (dermatology)

Crust (dermatology) is a medical term that refers to the formation of hardened layers on the surface of the skin. This is often a result of various skin conditions or injuries that cause the skin to produce excess amounts of sebum, serum, blood, or other bodily fluids. These fluids then dry and harden, forming a crust on the skin's surface.

Causes

Crust formation on the skin can be caused by a variety of factors. These include:

• Infections: Bacterial, viral, or fungal infections can cause the skin to produce excess fluids, leading to crust formation.
• Inflammation: Inflammatory skin conditions such as dermatitis, eczema, and psoriasis can cause the skin to become crusty.
• Injury: Any form of skin injury, including cuts, burns, and abrasions, can lead to crust formation as part of the healing process.

Symptoms

The primary symptom of crust formation is the presence of hardened layers on the skin's surface. These may be yellow, brown, or red in color, depending on the type of fluid that has dried to form the crust. Other symptoms may include itching, pain, and swelling in the affected area.

Treatment

Treatment for crust formation depends on the underlying cause. This may involve:

• Antibiotics or antifungal medications for infections
• Topical creams or ointments for inflammatory skin conditions
• Proper wound care for injuries

In all cases, it is important to avoid picking at or scratching the crust, as this can lead to further skin damage and potential scarring.

See also

• Scab
• Skin lesion
• Dermatology