My daily work as a doctor: My treatment value is increasing.

The two went to the hospital and re-bandaged and changed the dressing for Lu Renxin's wound.

After the doctor finished, he took out his phone and checked the time.

What? It's already past four in the afternoon.

My thesis!

Queuing at the hospital is indeed a huge waste of time—waiting for your number to be called, waiting for your dressing to be changed…

I need to write a little more before I have to catch the subway home.

Lu Renxin got back on the back of Shen Yueru's electric scooter and directed her to drop him off at the library entrance.

Upon arriving at his destination, he quickly got off the bus, ready to rush to his seat and study as fast as he could.

Shen Yueru stopped him, bracing herself on the bike with her legs spread apart, and casually pulled out her phone to display a QR code:

"Let's add each other on WeChat. I'm so sorry I bumped into you today. I still owe you a serving of grilled cold noodles."

Lu Renxin never expected that she would still remember the grilled cold noodles where he died tragically.

He had already experienced Shen Yueru's persistence; if he didn't take it seriously, she would pester him for a while longer, and then he would have even less time to study.

Since they're just students from other schools, adding them as friends won't hurt.

As for the cold noodles, forget about them; they're not expensive, so there's no need to haggle over them.

So he waved his hand at Shen Yueru: "WeChat is fine, but no need for cold noodles."

After scanning the QR code with his phone, Lu Renxin walked towards the library without looking back.

He didn't see Shen Yueru behind him, whose lips curled up slightly, revealing two sharp little tiger teeth.

……

April 1st, Monday.

Today is not only April Fool's Day, but also Surgery Day, and the day when new interns begin their rotation in the department.

A new atmosphere, new work, the three interns huddled together in a corner like quails.

Whether it's an internship or residency training, the work is done on a monthly basis.

Last month you might have been in the gastroenterology or cardiology department..., next month you might be assigned to the proctology or ophthalmology department...

The Academic Affairs Office will arrange their rotation schedule as reasonably as possible.

As for Lu Renxin, a veteran graduate student in his third year, the teaching affairs office will arrange for him to return to his supervisor's department to serve as a pillar of support.

The fact that they are assigned to different departments each month means that they may encounter new teachers and work environments every month.

There is always a sense of unease during each handover.

Wang Mengrui, the teaching secretary and Lu Renxin's superior, looked at the list of interns in her hand and made arrangements:

"Tian Jingjing, you follow Lu Renxin; Li Qian, you follow Wang Jingyao; Zhang Yue, you follow Lin Bo."

Two girls and one boy are this month's interns.

With her short, ear-length hair and large black-rimmed glasses, Tian Jingjing followed Wang Mengrui's pointing finger and found Lu Renxin, greeting him awkwardly:

"Hi senior, is there anything I can help you with?"

Lu Renxin vaguely saw his own rotation in her figure.

At the time, he didn't know what to do and looked confused. He just followed closely behind his seniors like a newborn chick.

Lu Renxin empathized: Giving her some work to do and keeping her busy actually calmed her down, made her feel integrated, and made her less nervous.

But I'm going to the operating room soon and can't take her with me, so I have to entrust her to Lin Bo for now.

"Lin Bo, could you look after my intern for a bit this morning? I need to go to the operating room."

Lin Bo raised his right hand and made an OK sign, indicating that it was no problem to hand it over to him.

After settling Tian Jingjing in, Lu Renxin went to the operating room.

She changed into a ripped scrub suit and ugly dark green Crocs.

As the new week began, Zhang Weimin's eight beds were once again occupied by new patients.

Lu Renxin had already learned about the patient's condition in advance.

Two cases of perianal abscess, three cases of hemorrhoids, two cases of anal fistula, and one case of pilonidal sinus.

The first surgery was for pilonidal sinus surgery, which sounds like a rather obscure name.

It is actually a common chronic infectious disease that occurs near the coccyx, that is, above the buttock crease.

The main symptoms are recurrent attacks, purulent discharge, and hair often hidden in the lesions.

Why is this so strange? There's hair inside the meat.

The prevailing view is that shed hair and dandruff, due to prolonged sitting, friction, or localized negative pressure, pierce into the skin like nails.

This then triggered a foreign body reaction and infection in the body.

It is most likely to occur in young men aged 20-30.

This is especially true for people with excessive body hair, obesity, or those who sit for long periods of time (such as drivers and programmers).

This patient fits the characteristics of a high-risk group.

He was chubby and fair-skinned, looking like a dough ball, but when he took off his clothes, you could see that he had a lot of hair all over his body.

"Boom—" The operating room door opened automatically.

Zhang Weimin walked in and saw the patient on the bed: "You're opening a pilonidal sinus for the first patient?"

"We haven't done many pilonidal sinus surgeries yet, so remember to watch and learn carefully," he instructed.

Lu Renxin quickly nodded in agreement.

Anesthesia, disinfection, draping...

The patient had already fallen into a deep sleep.

Lu Renxin and Zhang Weimin went up to the operating table to begin the surgery.

Following my mentor during surgery is a completely different experience; there are always questions and explanations of key points interspersed throughout.

"Xiao Lu, come and see the depth of his Dou Dao."

Lu Renxin turned to look and saw Zhang Weimin inserting a probe into the small hole on the outside.

"It's so long."

After taking it out, Zhang Weimin gestured to show the length of the probe.

It was indeed very deep, so conventional surgical methods were not suitable, Lu Renxin silently judged.

A pilonidal sinus is like a ditch that is repeatedly blocked and inflamed by debris.

The conventional surgical method involves removing the sinus tract, cyst, and all surrounding necrotic tissue.

This means completely digging up the entire blocked and inflamed section of the ditch and removing all debris.

After cutting, the wound can either be sutured directly or left open to heal.

Both methods have advantages and disadvantages.

If you sew it up, it will heal quickly and the painful period will be short.

However, the coccyx area is prone to dampness. If a piece of flesh is removed and then stitched up, the skin will be taut and under tension, making it easy for infection and sutures to break, leading to surgical failure or recurrence.

Open healing is simple: after the incision, no stitches are needed, allowing the wound to heal slowly from the inside.

This method has a low recurrence rate, but it takes a long time for such a large wound to heal on its own, resulting in a wider scar.

Perhaps because Lu Renxin had been staring at the wound for too long, Zhang Weimin suddenly asked:

"Xiao Lu, which surgical method do you think is most suitable for this patient?"

Huh? Lu Renxin was suddenly asked the question and quickly thought of how to answer.

The two methods mentioned above were also used for the patients with pilonidal sinus who were operated on by my mentor before.

Should I answer directly? No, that won't work.

Your advisor won't ask meaningless questions; neither of the two conventional approaches mentioned above is appropriate, and any response would be wrong.

Lu Renxin pondered the documents he had read.

I suddenly remembered a review article I saw yesterday while researching in the library.

It mentions that in order to overcome the disadvantage of direct suturing being prone to tearing, doctors now prefer to "move" the wound out of the midline of the gluteal cleft.

If it's prone to breaking in the middle, then I'll just keep it out of the middle.

The review listed several methods, including Z-suturing, Limberg flap (rhomboid flap), Karydakis flap, Bascom gluteal fold elevation, etc.