The cracks at the bottom of the child's ear are caused by dilation of small blood vessels.

The so-called dilation of small blood vessels in the ear is actually the dilation of the capillaries inside the ear. This phenomenon is quite common in real life. For example, some boys or girls will have their ears turn red and hot and feel shy when they see the opposite sex. This is a manifestation of dilation of the ear capillaries. In more severe cases, the capillaries in the ear dilate and can form spots the color of your shoe. Here we will introduce the situations in which the ear capillaries are prone to dilation.

After strenuous exercise, your ears often feel hot. This is because when people exercise, their heart beats faster, supplying more blood to the muscles in their limbs. After exercise, the muscles need less blood, but the heart beat cannot slow down immediately, so more blood rushes to the heart. The skin of the head and ears is very thin and covered with abundant blood vessels. When a large amount of blood flows through the ears, the blood vessels expand and become thicker, and the ears turn red. Because the blood has a certain temperature, the ears feel hot. As the heart gradually returns to normal, the blood vessels shrink and become thinner, the amount of blood on the ears decreases, and the ears no longer become hot.

If capillary dilation is not caused by certain disease factors or long-term use of hormone drugs, it may generally be caused by certain physical factors, such as long-term exposure to wind and sun, living in plateau areas, etc. If the symptoms are more serious, dual-wavelength pulsed dye laser (dual-wavelength vascular lesion workstation) can be used for treatment. Using this technology, the patient does not feel pain and the effect is reliable.

Laser removal of red blood streaks has a selective photothermal effect. The hemoglobin in the capillaries absorbs laser energy. When hemoglobin strongly absorbs light energy, it converts it into heat energy to heat the entire blood vessel, causing it to coagulate and necrotize, and finally be absorbed by the human body. This method will not cause damage to the subcutaneous blood vessels. Without hurting the skin, it will coagulate and block the small blood vessels in the skin, thereby making the red blood streaks disappear and achieving the purpose of removing the red blood streaks.

It should also be noted that in addition to the reasons mentioned above, some friends may suffer from ear capillary dilation due to long-term use of antihypertensive drugs or severe vitamin deficiency. If the ear capillaries are dilated for a long time, it will easily affect the skin's absorption of nutrients, making the skin more susceptible to aging and more sensitive.