Is it best to cut your nails into a square shape? Does the size of your nail crescent really have anything to do with your health?

Science Fiction Network, April 6 (Qin Yingying) When cutting nails, most people will cut along the white edge at the front of the nail into an arc shape. In fact, there is a "safe" shape for trimming nails, which is best to cut into a square shape, with a straight line at the front, not an arc shape.

We all know that the corners of toenails should not be cut too short, otherwise the toenails will easily grow into the flesh and hurt. Why "toenails"? Because the ingrown toenails (ingrown toenails) that we are worried about are mostly found on the big toe. Ingrown toenails refer to the side or corner of the toenail growing into the surrounding flesh. The big toe itself has more flesh (nail folds) on both sides, and because the toes bear weight, ingrown toenails are more likely to occur. If the side edges of the nail plate are over-trimmed or if you wear ill-fitting shoes, the small thorns on the side edges of the nail plate will pierce the lateral nail folds and penetrate the skin, causing foreign body inflammatory reactions and secondary infections. As the most commonly affected part, the big toe will have symptoms and manifestations such as pain, edema, exudation, and granulation tissue hyperplasia.

In addition, you often hear the elderly say that you cannot cut your nails at night. This is actually a superstitious belief. The real reason is that in the past, there were no electric lights and the light was dim, so people used kerosene lamps, candles, etc. It is easy to cut your nails under such light, causing damage, infection, etc., so it is best not to cut your nails.

In addition to the need to be careful when clipping nails, you often hear that the size of the half-moon on the nails is related to health. Is this credible?

The lunula of the nail refers to a white half-moon above the root of the nail, also known as the "crescent-shaped white line". In fact, the size, shape and position of the lunula are mainly determined by the differentiation and proliferation of nail mother cells, and have no direct relationship with physical health.

The size and shape of the lunula may vary due to individual differences, age, gender, genetics and other factors. Some people do not have obvious lunulae on their nails, or the shape of the lunulae is relatively small, which does not necessarily mean that the body is unhealthy. Of course, some abnormal changes in nails, such as changes in nail color, thickness, shape, etc., may be related to some diseases.