"That makes no sense." Su Yundao said, "Humans have 46 chromosomes, gorillas have 48, but there are no 47 chromosomes left... Huh? Why are we talking about this?"
"It's not you yet." Zheng Ren used sterile gloves to fiddle with the hair on the patient's soles twice, pondering how to solve this problem.
"It has nothing to do with reproductive isolation or genetic changes. I think it's like hair migration." Zheng Ren twisted the hair growing on the soles of his feet with his hands and gently placed it on his fingers. "It's embedded in the deepest part of the skin." The outer layer, as you walk deeper, gradually stimulates the nerve endings of the thicker layer of skin on your feet.”
"Boss Zheng, please speak slowly." Zhou Litao didn't hear clearly. He asked immediately if he didn't understand.
"Why can't I understand what I'm saying?" Su Yun seemed to have forgotten the smell of the patient's sweaty feet. He came close to Zheng Ren's finger, looked at the very fine hair carefully, and said, "It's true, I remember That article was published by a Brazilian doctor.”
"Brother Yun, what is it?" Zhou Litao asked.
"There is a similar case report in the "Journal of Emergency Medicine Vision". I think white people have softer hair and are less likely to have hair migration." Su Yundao, "Normally speaking, people with more hair and harder hair are less likely to have hair migration." It’s more likely to occur in Asian people.”
"But this hair... is a bit soft."
Su Yun moved closer and looked at the hair twisted on Zheng Ren's fingers seriously.
Zheng Ren was very worried that Su Yun would be fainted like Lin Yuan. After looking at it for a while, his eyes were already full of tears.
It's not that the love is deep, it's just that the sour smell is too strong.
"Boss Zheng, is this it?" Zhou Litao looked at a hair on the sole of his foot in confusion. It was really difficult to connect the patient's severe pain with it.
Zheng Ren then gently touched the root of the hair with his other hand.
"Ouch..." The patient immediately cried out in pain.
"Does it hurt that much?" Su Yun asked.
"It hurts... it's not that painful, but I'm used to it." The patient said with some fear, "As long as you touch it with a little force, it hurts. I... I'm not pretending."
"I know, the hair penetrated the cuticle, extended deep into the sole of the foot, and touched the peripheral nerves." Zheng Ren said softly: "Looking at his state of pain, consider that the hair penetrates deeper."
"Use tweezers, I'll do it." Su Yundao said.
"No," Zheng Ren said, "take it under the microscope."
"Is it making a big deal out of a molehill?" Su Yun asked puzzledly.
"I have also read the article in the "Journal of Emergency Medicine Vision". Because the patient is white and the hair is relatively soft, just use tweezers to pick it out. I think he should be careful. Once some hair is left in the deep layer, you want to remove it. It’s very troublesome to get it out. Even if it’s cut open, you can’t find it.”
Zheng Ren spoke out his true thoughts very seriously.
The patient sat on the examination bed, listening for a moment, and was still thinking about what he just said about the reproductive isolation between humans and gorillas.
This is all about nothing, my heel hurts, why is it so far gone
"Okay, put on your shoes and follow me to the disposal room." Zheng Ren said.
"Doctor, what are we going to do?" The patient was stunned for a moment and asked in a low voice.
"The hair fell off when you stepped on the sole of your foot, and then penetrated the cuticle and entered the location of the peripheral nerves." Zheng Rendao, "You need to 'pull' out that hair before your disease can be cured."
The patient still didn't understand. He felt that the young doctor in front of him was a bit young, but he had a strong aura about him that he could not question.
Putting on his shoes and tiptoeing, he limped to the treatment room.
"Lin Yuan, go to the operating room and get my microscope." Zheng Ren said, "If there's more... forget it, you contact Yi Ren, I still want... I'd better do it myself."
Zheng Ren may have felt that a little explanation was too troublesome, so he said a few words to the patient, turned around and left.
Lin Yuan watched Zheng Ren leave in surprise, went to find the surgical equipment himself, and asked in a low voice: "Brother Yun, what is Boss Zheng doing?"
"What a fuss." Su Yundao said, "Just pull it out with tweezers. He insists on cutting the cuticle under a microscope. Do you think how thick is the hair?"
"60-90 microns." Lin Yuan said without thinking.
"That's right, less than 1/10 millimeter. Your boss Zheng is so powerful that he wants to perform a surgical operation without bleeding." No matter what Su Yun said, he couldn't say it well, and the sarcastic tone in his mouth was so thick that he couldn't get rid of it.
"Brother Yun, aren't you bleeding?"
"Cut the cuticle. The cuticle on the sole of the foot is slightly thicker, probably 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 the hair is pulled out."
“…”
Lin Yuan took a look at the patient. He was just a patient coming to the emergency department. No wonder Brother Yun said that Boss Zheng was making a fuss out of a molehill.
The patient sat silently on the bed in the treatment room and waited. Soon he saw the young doctor coming back carrying a surgical box full of metal.
When he put on the surgical microscope, opened the operating box, and took out the small microsurgical instruments, the patient looked directly at Zheng Ren, who was full of technology, and had countless questions in his heart.
Before he could ask, he heard Zheng Ren say: "This is the black line in the skin. It needs to be distinguished from the migration of parasites."
"If it is an epidermal parasite, there will be no fixed pain, and the itching will be severe. With experience this time, you will know what to do next time you encounter a similar situation."
As he spoke, the patient saw Zheng Ren attaching a small blade to the handle of the knife, which was as small as a children's toy. But the few rays of cold light reflected from the blade made him feel a little afraid.
Although he was a little scared, he was giving himself psychological comfort.
It's okay, it's okay, I have to be anesthetized no matter what. I just don’t know how thin a needle needs to be for anesthesia with such a small scalpel blade.
wrong! Why don't you see the anesthesia needle? besides! I didn’t see any anesthetics either!
The patient was startled for a moment. Before he understood what was happening, Zheng Ren had already put the knife aside and took a pair of tweezers.
"Doctor, don't you need anesthesia?" the patient asked anxiously.
"It's done, no need for anesthesia." Zheng Ren said lightly, and then looked at the newly removed hair against the light.
"This is… "
"You walked barefoot at home and stepped on the hair. This hair got into the sole of your foot and stuck in like a needle." Zheng Ren smiled, twisted the hair onto a piece of sterile gauze, and then put the sterile gauze on it. Give the gauze to the patient.