The most common reason for an itchy nail is a fungal nail infection (onychomycosis). This occurs when fungi overgrow in, under, or on the nail.
Here's a breakdown of why this happens:
-
Fungal Overgrowth: Fungi thrive in warm, moist environments. When your nails are exposed to these conditions, fungi can multiply and cause an infection. This is the primary driver of the itching sensation.
-
Type of Fungi: The same fungi responsible for athlete's foot, jock itch, and ringworm can also infect your nails. If you have a fungal infection elsewhere on your body, it can spread to your nails.
-
Irritation: As the fungal infection progresses, it can cause inflammation and irritation around the nail, leading to the itching sensation.
Therefore, if your nail is itching, consider these factors. While less common, eczema, psoriasis, or allergic reactions to nail products could also be potential, although less likely, causes. Consider consulting a doctor for an accurate diagnosis and treatment.
