Patient's question:
Suddenly noticed white spots on the side of my left big toe, smooth without sensation. Wondering what the problem is and what can be done to recover.Doctor's answer:
What Causes White Spots on Fingernails?1. White Nails: Small white spots or linear white streaks on the nail plate, or complete whitening of the nail, are often associated with trauma, infection, anemia, nutritional deficiencies, arsenic poisoning, parasites, and certain systemic diseases. They can also be inherited genetically.
2. Iron Deficiency: Supplement with iron, deworm if necessary, and increase nutrition by consuming milk, eggs, and high-quality protein. Generally, a few small white spots on nails are normal.
Although there is no clear medical explanation for white spots on nails, clinical observations have shown that some people with calcium and zinc deficiencies may experience this condition. It is recommended to undergo a trace element test at a hospital to determine the cause and receive appropriate treatment.
Growth and Development Depend on Six Key Nutritional Elements: Protein, Fat, Starch, Vitamins, Mineral Elements, and Dietary Fiber. Mineral elements play a comprehensive role in human growth and development, from building and repairing body tissues to physiological metabolism and enhancing immune function, even directly preventing and treating diseases. Mineral elements that account for more than 0.01% of daily dietary needs are called macrominerals (e.g., calcium, magnesium), while those below 0.01% are trace elements. The World Health Organization (WHO) currently recognizes 14 essential trace elements, with zinc being the most important.
White spots on nails are usually not a specific disease but rather a symptom of mineral deficiencies. A comprehensive analysis is needed to determine if there are other physical changes. For example, some parents report that their children wake up easily at night, sweat excessively, and experience leg pain or cramps after intense exercise—these are signs of calcium deficiency, also known as growing pains.
Children with zinc deficiency may exhibit symptoms such as dull skin, yellowish hair, facial eczema, poor appetite, slow growth and development, weakened immunity, and increased susceptibility to illness. Currently, hospitals can easily test for trace elements and calcium with just a drop of peripheral blood. Early detection and treatment can be beneficial for children showing these symptoms.
As the saying goes, "Medicine is better than food." To prevent calcium and trace element deficiencies in children, a balanced and diverse diet is essential. This includes a proper mix of coarse and fine grains, as well as balanced intake of vegetables, fruits, meat, eggs, and other nutrients, while correcting picky eating habits.
Foods rich in calcium, such as shellfish, soybeans, milk, nuts, kelp, and beef, should be consumed regularly. Zinc-rich foods include oysters, pork liver, fish, high-zinc eggs, chestnuts, walnuts, jujubes, yellow catfish, and yeast zinc.
Additionally, sunlight can effectively aid calcium absorption. It is recommended to engage in outdoor activities for at least two hours daily, which can not only strengthen the body but also help prevent rickets.