What causes discoloration of the nail plate and how can it be treated?

Nail discoloration can happen for several reasons. Fungal infections are a common cause, leading to a yellow-green color. Injury to the nail might cause it to turn black or blue. Sometimes, the color change is due to pigmentation issues, which might make nails look brown or black.

Causes:

1. Fungal Infections: These often make the nail yellow or greenish.
2. Injury: Trauma can result in black or blue nails.
3. Pigmentation Changes: Conditions like melanonychia can cause brown or black streaks.

Treatments:

• Fungal Infections: Antifungal medicines can help clear the infection.
• Injury: Allowing the nail to grow out or seeking medical advice if it doesn't improve.
• Pigmentation: It's essential to check with a doctor to rule out serious conditions.

Each type of discoloration needs a different approach, so it's important to find out the cause to treat it properly.