We can suspect a violation in the body by visual inspection of the nail.
The shape or structure of the nail may change due to some pathology or the change may be directly related to the trauma received on the finger.
Brittle
The result of frequent wetting or drying. In some clinical cases, it indicates iron deficiency or hypothyroidism.
Soft or weak
It appears as a result of excessive moisture or contact with chemicals.
In some clinical cases, it is a symptom of vitamin B, calcium, iron and fatty acid deficiency.
Peeling
Most likely, you have received a trauma to the nail.
Yellow
The cause of yellow nails is an infection or an allergic reaction to nail polish. In rare clinical cases, it is an indication of a thyroid problem, psoriasis or diabetes.
Black lines
often appear after trauma, for example, if you get your finger stuck in a door. In rare clinical cases, they are a symptom of psoriasis, endocarditis, and nail melanoma.
Keep in mind that if the lines are caused by trauma, they will disappear over time. However, you should consult a doctor if black spots are noticeable even after several weeks and you have other symptoms, namely: inflammatory process on the skin, night sweats, bleeding from the nail.
White spots
The cause of white spots on the nail may be:
- Zinc deficiency in the body;
- Allergic reaction;
- Fungal infection;
- Nail trauma.
Source:
https://www.healthline.com/health/beauty-skin-care/healthy-nails#changing-color
