Chapter 1704: 1646 Obsessive-Compulsive Disorder (Sect Leader Cexfzy Bonus)

There were no sterile gloves, no latex gloves; Zheng Renhe stared, eyes locked, at the cup of red urine on the table.

It really was red, and quite uniform. But it didn't look like gross hematuria to the naked eye, because blood urine is slightly cloudy, not a clear red liquid.

Zheng Ren felt a bit dazed, wondering what this was. If water, food, and medication factors could be ruled out, the only possibility was some rare disease.

But the big pig trotter gave no diagnosis!

On the other side of the cup was Su Yun.

Through the water cup, Zheng Ren saw Su Yun's eyes were huge, like a demon's eyes in a deep sea of blood. Surely Su Yun saw Zheng Ren the same way.

They both spaced out slightly, gazing at each other across the glass of red urine, silent, each pondering the possibilities.

Zhang Xuanya didn't urge them on; she waited politely.

After a few more minutes, she stood up and walked toward the restroom.

Hearing the footsteps, Zheng Ren felt that faint idea resurface in his mind.

Damn it! What exactly is that idea?

He could never grasp that sliver of inspiration. Though it was so close, so within reach.

Wait……

Zheng Ren sprang to his feet, saying, "Miss Zhang, wait a moment."

"Huh?" Zhang Xuanya stopped, turned her head; her black hair and fair face were very pretty.

"Frequent urination is possible, but you've been going to the restroom too often. If so, we should consider diabetes insipidus." Zheng Ren had vaguely grasped an idea, but he wasn't sure, so he could only grope forward in the dark.

"You…" Zhang Xuanya widened her eyes, looking at Zheng Ren as if he were an idiot.

He hadn't seen that kind of look in a long time, except when Su Yun gave it to him.

"Boss, can't you lack any common sense?" Su Yun said disparagingly, "Miss Zhang is going to touch up her makeup, not use the restroom—it's perfectly normal for a girl to do that, right?"

"Er…" Zheng Ren felt embarrassed, but precisely because of that embarrassment, his thoughts sped up.

"Touch up makeup? Every ten or so minutes?" Zheng Ren's eyes lit up; he instantly understood the situation.

"…" Su Yun also realized something was wrong.

Zhang Xuanya froze. Touching up her makeup—could something be wrong?

"Miss Zhang, I think I already know where the problem lies." Zheng Ren smiled.

"What's going on?" Zhang Xuanya asked, her voice trembling.

"Lipstick!" Zheng Ren said. "The problem is the lipstick."

Su Yun suddenly understood, his eyes gleaming with delight. "Exactly, it's the lipstick's pigment. Miss Zhang, did you reapply your lipstick three times in the 52 minutes since I came in?"

Zhang Xuanya couldn't recall exactly how long, but she had indeed reapplied her lipstick three times.

"The pigment in lipstick contains dyes or pigments; for it to adhere evenly to the lips, the pigment must be finely ground. The most commonly used soluble dye is bromic acid red." Su Yun said cheerfully.

Zhang Xuanya's "illness" was now quite clear.

"Of course, bromic acid red dye comes in natural and chemical varieties; your Guerlain 09 edition uses natural pigment, which is less harmful to the body. Because you have a certain habit—applying lipstick at least 30 to 50 times a day—the pigment gets absorbed into your body and is excreted in the urine."

Before speaking, Su Yun actually didn't know exactly where the problem lay. But his mind worked extremely fast; Zheng Ren gave him a hint, and as he elaborated, it sounded more and more plausible.

In the end, Su Yun laughed, his bangs fluttering.

He knew… the boss had uncovered the factual truth.

"…" Zhang Xuanya stared, stunned.

"The pigment—I know that. I do apply lipstick many times a day; it's true, though I'm not sure if it's 30 or 50… roughly about that."

"But what does that have to do with bloody urine?"

"Yeah, Su Yun's right." Zheng Ren smiled. "Miss Zhang, you're under too much stress; you relieve it by touching up your makeup—or applying lipstick—to make your complexion look better, right?"

Zhang Xuanya nodded dazedly. "Yeah, my complexion has indeed been poor lately, especially over the past six months. I tried using lipstick to touch up my makeup, and it made me look more spirited, so…"

"That's it." Zheng Ren exhaled, feeling refreshed. "As Su Yun already explained, the treatment is simple: go three days without makeup, no lipstick, and see if your urine color changes."

"Really?" Zhang Xuanya looked at Zheng Ren dubiously.

"This is currently the only reasonable explanation." Zheng Ren smiled. "Because it's a high‑end lipstick, the pigment is natural, so the bodily harm is minimal. Moreover, you haven't been using it that frequently for long, and the Harmony Nurture medical exam showed no organic lesions."

"But even so, in about a year or so, the buildup could become enough to cause organic lesions. Correcting it now is still possible." Zheng Ren said.

Su Yun smiled, relaxed, his bangs drifting.

"…" Zhang Xuanya was speechless.

"If there's nothing else, we'll be off. Actually, don't keep thinking you're too tired. Who isn't?" Su Yun looked at Zhang Xuanya earnestly. "Do doctors not get tired? You're halfway through a meal, get summoned here, and stare at urine for half an hour."

Zhang Xuanya's face flushed, a mix of embarrassment and anger. But thinking back to how those two "perverted doctors" had stared entranced at the urine‑filled cup, she found she couldn't get the words out.

"So then, relax. At least you still have a chance to earn money—many people want to make money but can't." Su Yun whistled, a carefree grin on his face, like a petty loiterer leaning against the curb trying to pick up girls.

Just that loafer was somewhat handsome, the stunning kind. Faced with his teasing, both Zhang Xuanya and her little assistant blushed.

"Steady now." Zheng Ren said.

"Frankly speaking." Su Yun smiled. "You're quite pretty; you need to have confidence in yourself. As for lipstick, don't use it for now—add me on WeChat, and let me know how you're doing in a few days."

Su Yun's words seemed to have a spell; Zhang Xuanya offered no objection, had no other thoughts, and exchanged WeChat with him.

"Follow the doctor's orders—don't go smearing lipstick again." Su Yun said with a smile.

The two left the room, and Su Yun asked, "Applying lipstick thirty to fifty times a day—aren't you afraid of ruining your lips? This obsessive‑compulsive disorder is really severe!"

"It's not just the lips; later on, the kidneys could suffer too. Applying lipstick is fine, but if the amount is excessive… anything in excess is wrong." Zheng Ren chuckled. "What do you say?"

"Cut the nonsense, hurry back—they probably haven't left yet." Su Yun said. "I haven't even finished my meal, yet I've been crouched here staring at red urine for half an hour. How are we supposed to drink red wine from now on?"