Web the answer is d:

What causes green toenails. Web toenails that change in color to yellow, brown, or green; Web below mentioned are the possible causes of green nail syndrome: Nail fungus can affect several nails.

Web find a podiatrist causes of nail problems most nail problems are caused by: Cutting your toenails too short. Web toenail discoloration is a common problem.

Web the nails may also take on a yellow, green, or brown hue. When it grows, it produces hallmark green pigments called pyocyanin and pyoverdin. Web microscopic organisms cause toenail fungus.

(see also overview of nail disorders.) The nail in the area of onycholysis becomes greenish in color. These fungi often live harmlessly on your skin, but they can sometimes multiply and lead to infections.

, md, dermatology & laser center of chapel hill. Green nail syndrome is caused by infection with pseudomonas aeruginosa. The fungi prefer warm, dark and moist places like the feet.

[9] pseudomonas aeruginosa, the most common cause but not the only one, [10] is frequently found in nature including in water sources, humans, animals and soil. Skin contact with someone who has a fungal infection (like athlete's foot or ringworm) skin contact with moist areas where fungus thrives (pool decks, locker rooms) Staphylococcus aureus bacteria cause staph infections.