Zhang Zheng was very confused. No one had ever asked him such questions in other hospitals, and he couldn't help but feel a little excited.

Yang Lan'er didn't answer directly for the time being, but continued to ask: "What happened after that? When did you feel unwell or have a headache?"

"A week later, I felt a migraine. As I have had this disease for a long time, I didn't pay much attention to it. It was not until two months ago that I kept feeling sleepy and unwell that I went to the hospital. As a result, they said I had a tumor in my brain." Zhang Zheng's eyes dimmed. Most people knew what this meant. Even if it could be cured, their family might not be able to afford the high cost of the operation.

"Don't worry, there is no tumor in your brain." Yang Lan'er said calmly, which instantly made Zhang Zheng open his eyes wide, and Li Zhi's eyes also opened wide at the same time.

Li Zhi stroked his glasses and told himself to stay calm. Could Granny Meng know the patient's condition just by feeling the pulse? She didn't even need any high-tech equipment? Most importantly, the root of the disease was in the most mysterious part of the human body, the brain? If he didn't know Granny Meng's level, he would have thought she was a fraud.

"No...it's not a tumor?" Zhang Zheng opened his mouth wide, feeling very unbelievable.

"Yes, when you were injured that time, you felt that you were not bleeding. In fact, the bleeding was very little and was covered by your hair. It healed very quickly, so no one noticed anything wrong." Yang Lan'er scanned it several times with her spiritual sense and said with certainty.

"Then, what is that?" Zhang Zheng didn't react for a moment and was stunned by the sudden surprise.

"Metal fragments." Yang Lan'er looked at the dialysis report. She didn't know how the doctors who had examined Zhang Zheng before determined that it was a brain tumor?

"But, I've been checking frequently recently, and they said that the thing has spread, so I confirmed that it is a tumor!" Zhang Zheng finally thought of the key and asked in confusion.

"That's because the metal fragment has rusted and infected nearby cells, which is why it looks like it is spreading." Yang Lan'er raised her eyebrows and said.

Yang Lan'er's self-confidence was very convincing. Zhang Zheng believed it at least half way, or rather, he would rather believe this than believe that he had a brain tumor.

"Well, what should we do now?" Zhang Zheng said helplessly.

"It's very simple. Just have surgery, remove the fragment, take some medicine, and you'll be fine soon." Yang Lan'er seemed to be saying something as easy as eating and drinking water.

"Surgery? When? How much will it cost?" Zhang Zheng didn't know whether he should cheer or feel sad.

"Don't worry, it's just a minor surgery, just give..." Yang Lan'er was confused and looked at Li Zhi. She didn't know how much it would cost! However, a little less should be better: "Just give 200 yuan!"

"..." Li Zhi was shocked. When did brain surgery become so cheap? Hey, teacher, don't charge so much. It will be difficult for the hospital to do it!

"..." Zhang Zheng didn't react. Even if he didn't understand, he should have understood. Taking a fragment out of his brain, only two hundred yuan? Did he hear it right? Actually, two million?

Yang Lan'er was not self-conscious at all. She nodded and said, "If you can, you can do it now. Then I will prescribe some Chinese medicine for you to recover. After taking it for a while, you will be fine. A dose of Chinese medicine is not expensive, about 10 to 20 yuan."

Recently, Yang Lan'er has learned a lot about the current drug prices from Li Zhi's various questions. Moreover, the computer on the desk is not just for show. It has a list of drugs and she can check the prices there.

She knew that patients like Zhang Zheng would be most worried about money when coming to the hospital, so Yang Lan'er spoke very frankly, which made people feel completely at ease.

Zhang Zheng came back to his senses. Can it be done now? It's really just a minor operation!

"Can I go to the bathroom?" Zhang Zheng was a little nervous. After all, ordinary people would not think it was a good thing when they heard the word "surgery".

After Zhang Zheng left, Li Zhi said with a bitter face: "Teacher, the operating rooms are not empty now!" He didn't want to talk about the issue of surgery fees anymore, so he talked about the most realistic thing first.

"Oh, isn't there an examination room inside?" Yang Lan'er pointed to the door on the back wall. This office also came with two small rooms, one for doctors to rest and the other for temporary examinations. She had checked them out and found that the disinfection inside was done very well.

"Can you open the skull in that room? It will get infected." Li Zhi said in surprise.

"Who said the skull is going to be opened?" Yang Lan'er looked at Li Zhi strangely. Doesn't this guy have too many imaginations?

Li Zhi was stunned: "How can we remove the metal fragments without opening the skull?" Shouldn't this be common sense?

"Tsk, you have no vision. Today, this...this grandmother-in-law will let you see my real skills." Yang Lan'er said with disdain. She really didn't feel the difficulty of this Zhang Zheng's question.

Wearing antibacterial gloves, Yang Lan'er prepared some silver needles and a sharp scalpel.

Pulling the mask, Yang Lan'er said to Zhang Zheng, who was lying on the operating table nervously, "Because the operation is on your head, all your hair has to be shaved off. You can only grow hair after the wound heals."

"Okay, okay!" Zhang Zheng tried hard to calm himself down. Compared to his life, a bald head means nothing!

Yang Laner nodded to Li Zhi: "Let's do it."

Li Zhi had a lot of experience in surgery, especially for patients with head problems, as almost all of them had their heads shaved. So, his movements were very skilled, no worse than those performed in hair salons outside. After all, it was a bald head, so what technical content was there? After shaving Zhang Zheng's hair in a few strokes, Li Zhi chose the best visual angle that would not block Yang Lan'er's movements, and stared at Yang Lan'er's hands without blinking.

Since the publication of the Qing Nang Jing, anesthetics all over the world have been reformed, and the pure Chinese medicine, completely harmless Ma Fei San in the scripture has been directly used.

Fortunately, the raw materials for this thing are not difficult to obtain, otherwise, the medical community would be in tears.

Then, Yang Lan'er did not use anesthetics, but instead inserted a few silver needles. Zhang Zheng felt extremely sleepy, his eyelids drooped for several seconds, and he soon fell asleep.

Li Zhi was stunned. He really wanted to go up to check on Zhang Zheng's condition, but he had to force himself to hold back, knowing that now was not the time.

After the people fell asleep, Yang Lan'er took out a few silver needles and pierced Zhang Zheng's head with them. The tails of the silver needles trembled slightly and continuously at a strange frequency.

Next up…