Nail Changes: What Your Symptoms Might Indicate - Orthopedics

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Nail changes are beginning to occur?


I would like to ask the doctor, I recently went to the hospital for knee pain, and the doctor said I have gout.
However, I indirectly discovered that the big toes on both of my feet have turned black from the base (the white part), and there are black circular patterns spreading outward like ripples.
I am unsure what this condition is; could you please advise? I would appreciate it if you could make this public (because I have some issues with my email).
Thank you!

MICK, 30~39 year old female. Ask Date: 2005/06/21

Dr. Zhou Lizhi reply Orthopedics


First, let's talk about gout.
Gout is caused by an excess of uric acid in the body, which cannot be excreted in a timely manner and accumulates in the peripheral joints.
About 70% of the affected sites are in the lower limbs, typically in the metatarsophalangeal joint of the big toe, followed by the ankle and knee joints during acute inflammation, which is characterized by severe pain, redness, and swelling.
Blood tests may not always show elevated uric acid levels at this time.
If left untreated, the gradual accumulation of uric acid can lead to the formation of tophi and joint deformities as long-term complications.
Therefore, the treatment principles include administering anti-inflammatory and analgesic medications during the acute phase, but more importantly, long-term uric acid-lowering therapy for 3 to 6 months.
Additionally, the color of the toes may change to black due to repeated swelling and the formation of tophi; however, other skin issues cannot be ruled out.
If there are still concerns, individuals are advised to seek examination at an outpatient clinic.

Reply Date: 2005/06/21

More Info


Nail changes can often be indicative of underlying health issues, and in your case, the black discoloration and the appearance of rippled lines on your toenails could be associated with a few different conditions. Given your recent diagnosis of gout, it’s important to consider how this condition might relate to the changes in your nails.

Firstly, gout is a form of inflammatory arthritis caused by the accumulation of uric acid crystals in the joints, leading to sudden and severe pain, redness, and swelling. While gout primarily affects the joints, particularly in the big toe, it can also have systemic effects that might manifest in other areas, including the nails. However, the direct correlation between gout and nail discoloration is not well established.

The black discoloration of your toenails could be due to several factors:
1. Trauma: One of the most common causes of black nails is trauma. If you have recently injured your toe or stubbed it, this could lead to bleeding under the nail, resulting in a black appearance.

2. Fungal Infections: Fungal infections can cause discoloration and changes in the texture of the nails. If the black color is accompanied by thickening, crumbling, or a foul odor, a fungal infection might be the cause.

3. Melanonychia: This condition involves the presence of a black or brown stripe on the nail and can be caused by various factors, including benign moles or more serious conditions like melanoma. If the discoloration is spreading or changing in appearance, it is essential to have it evaluated by a healthcare professional.

4. Systemic Conditions: Certain systemic diseases, including diabetes, can lead to changes in nail color and texture. Given that you have gout, it is worth considering whether there are other metabolic or systemic issues at play.

5. Medication Side Effects: If you are taking medications for gout or any other condition, it’s important to consider that some medications can cause changes in nail color as a side effect.

Given the complexity of nail changes and their potential implications, it is crucial to consult with a healthcare provider, preferably a dermatologist or a podiatrist, who can examine your nails and possibly perform tests to determine the underlying cause of the discoloration. They may recommend a biopsy of the nail if there is a concern about melanoma or other serious conditions.

In the meantime, here are some general recommendations:
- Avoid Trauma: Be cautious to avoid further injury to your toes. Wearing protective footwear can help.

- Maintain Hygiene: Keep your feet clean and dry to prevent fungal infections.

- Monitor Changes: Keep an eye on the progression of the discoloration. If it worsens or if you experience pain, swelling, or other symptoms, seek medical attention promptly.

In conclusion, while the changes in your toenails could be related to your gout or other factors, a thorough evaluation by a healthcare professional is necessary to determine the exact cause and appropriate treatment. Don’t hesitate to reach out for help, as early intervention can often lead to better outcomes.

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