"That doesn't make sense." Su Yun said, "people have 46 chromosomes, gorillas have 48, but there are not 47 chromosomes left... Eh? What are we talking about?"

"It's not you." Zheng Ren fiddled with the patient's plantar hair twice with sterile gloves, pondering how to solve this problem.

"It has nothing to do with reproductive isolation and genetic changes. I think it looks like hair migration." Zheng Ren twisted the hair growing on the soles of his feet with his hands and gently put it on his fingers. "It is embedded in the outermost layer of the skin. With the continuous deepening of walking, it gradually stimulates the nerve endings of a thicker layer of skin on his feet."

"Boss Zheng, speak slowly." Zhou Litao didn't understand clearly. He asked if he didn't understand and said immediately.

"Why can't you understand a word." Su Yun seemed to forget the smell of the patient's sweaty feet. He came to Zheng Ren's fingers, looked at the very thin hair and said, "it's really oh. I remember that article published by a doctor in Brazil."

"Brother Yun, what is it?" Zhou Litao asked.

"There are similar cases reported in the Journal of emergency medical vision. I think the hair of white people is soft and there is little possibility of hair migration." Su Yun said, "normally speaking, it is more likely to appear in Asian people with more and harder hair."

"But this hair... Is a little soft."

Su Yun got closer again and looked at the hair twisted on Zheng Ren's fingers seriously.

Zheng Ren was worried that Su Yun would be fainted like Lin Yuan. He looked at it for a while, and his eyes were already filled with tears.

It's not the depth of love, but the sour smell is too strong.

"Boss Zheng, that's all?" Zhou Litao looked at a hair on the soles of his feet suspiciously. It was really difficult to connect the patient's severe pain with it.

Zheng Ren then gently touched the position of the hair root with his other hand.

"Ow..." the patient immediately cried out in pain.

"Does it hurt so much?" Su Yun asked.

"It hurts... It doesn't hurt that much, but I'm used to it." The patient said with some fear: "as long as it's a little hard, it hurts when touched. I... I'm not pretending."

"Yes, the hair penetrates the stratum corneum, extends deep into the sole of the foot and touches the peripheral nerve." Zheng Ren said gently, "look at his painful state and consider the position of the hair."

"With tweezers, I'll do it." Su yundao.

"No." Zheng Ren said, "take it under the microscope."

"Did you make a mountain out of a molehill?" Su Yun asked puzzled.

"I've also read the article in the Journal of emergency medical vision, because the patient is white. The hair is soft. Just clip it out with tweezers. I think we should be careful. Once some of the hair is left in the deep layer, it's very troublesome to take it out. Even if it's cut, we can't find it."

Zheng Ren seriously said what he really thought in his heart.

The patient sat on the sickbed and listened in a daze. Now he is still recalling what he just said about the reproductive isolation between humans and gorillas.

What's this? My heel hurts. How can I pull so far.

"Well, put on your shoes and come with me to the disposal room." Zheng Rendao.

"Doctor, what are we going to do?" The patient was stunned and asked in a low voice.

"The hair falls off and you step on the soles of your feet. Later, it penetrates the stratum corneum and enters the position of the peripheral nerve." Zheng Ren said, "you need to pull out that hair in order to get better."

The patient still didn't understand. He felt that the little doctor in front of him was a little young, but he had a strong aura that could not be questioned by himself.

Put on his shoes and pad his toes. He limped to the disposal room.

"Lin Yuan, go to the operating room and get my microscope." Zheng Ren said: "let's have... Forget it, you contact Yi Ren, I still want... I'd better do it myself."

Zheng Ren may feel that a little explanation is too troublesome. He said two words to the patient and turned away.

Lin Yuan was surprised to see Zheng Ren leave. He went to find the surgical equipment and asked in a low voice, "Brother Yun, what is boss Zheng going to do?"

"Make a mountain out of a molehill." Su Yun said, "just pull it out with tweezers. He has to cut the cuticle under the microscope. How thick is your hair, do you think?"

"60-90 microns." Lin Yuan said without thinking.

"Yes, less than 1 / 10mm. Your boss Zheng is powerful and wants to perform a surgery without bleeding." Su Yun didn't speak well no matter what he said. The sarcastic tone in his mouth couldn't be melted.

"Brother Yun, don't bleed?"

"Cut the cuticle. The cuticle on the sole of the foot is a little thicker, which is estimated to be about 100 microns. Then go to the germinal layer, where the adhesion between the body tissue and the hair is not very serious, and then pull out the hair."

“……”

Lin Yuan took a look at the patient. He was just a patient who came to the emergency department. No wonder Brother Yun said that boss Zheng made a mountain out of a molehill.

The patient sat silently on the bed in the disposal room and waited. Soon he saw the young doctor coming back with a metal operating box.

When he put on the operating microscope, opened the operating box and took out the small microsurgical instruments, the patient looked at Zheng Ren with a sense of science and technology and had countless questions to ask.

Before he asked, Zheng Ren said, "here is the black line in the skin, which should be identified with the migration of parasites."

"If it is a parasite on the epidermis, there will be no fixed pain, and the itching will be very heavy. With experience this time, you will know what to do next time you encounter a similar situation."

With that, the patient saw Zheng Ren install a small blade on the handle, which was as small as a children's toy. But he felt a little afraid of the cold rays of light reflected from the blade.

Although he was afraid, he gave himself psychological comfort in his heart.

It's okay, it's okay. It's all anesthesia. I just don't know how thin a needle should be used for anesthesia with such a small surgical blade.

incorrect! Why didn't you see the anesthetic needle? also! No anesthetic!

The patient was stunned. Before he understood what had happened, Zheng Ren patted the knife aside and took a pair of tweezers.

"Doctor, don't you need anesthesia?" The patient asked nervously.

"Done, no anesthesia." Zheng Ren said faintly, and then looked at the light at the hair just taken off.

"This is..."

"You walk barefoot at home and step on your hair. This hair goes under your feet and goes in like a needle." Zheng Ren smiled, twisted his hair onto a sterile gauze, and then handed the sterile gauze to the patient.