Yu Shinagawa (54), a member of the comedy duo Shinagawa Shoji, has been diagnosed with diverticulitis. He reported a recurrence on X on October 28, 2026, and plans to return to work after three days of fasting and intravenous treatment at home. This article explains the history from the initial onset in March 2022 to the recurrence, as well as the characteristics of diverticulitis.

[2026] Shinagawa Yu's illness is diverticulitis | How did it recur and when will he return to work?

Q. What is the name of Yu Shinagawa's illness?

A. It's diverticulitis. On the night of October 28, 2026, she revealed on her X account that she had "diverticulitis again."

Q. When will you be returning to work?

A. In a post on October 29, 2026, she wrote that she would be returning to work the day after tomorrow, and that she was scheduled to return after three days of home rest, fasting, and receiving intravenous treatment.

Q. Have you had this condition before?

A. In March 2022, the patient was diagnosed with diverticulitis and hospitalized, and in May 2022, they reported a recurrence of symptoms.

Yu Shinagawa reports recurrence of diverticulitis
Current condition and when to return to work
The timeline from the onset of symptoms in 2022 to the recurrence.
What is diverticulitis?
Reactions from people around Ryuichi Kosugi and others
Frequently Asked Questions (FAQ)

1. Yu Shinagawa reports a recurrence of diverticulitis.

Yu Shinagawa (54), a member of the comedy duo Shinagawa Shoji, updated his X account on the evening of October 28, 2026, revealing that he had contracted diverticulitis.

👉Shinagawa Yu's official X (@shinahiro426)

【2026】品川祐の病名は憩室炎｜再発の経緯と仕事復帰はいつ？

In her post, she begins by saying, "Diverticulitis again," and continues, "I'm getting an IV drip at the hospital, and I'll be fasting for three days starting tomorrow. I'll study up on gut health..." As the word "again" suggests, this is not the first time Shinagawa has suffered from diverticulitis.

2. Current condition and timing of return to work

The following day, October 29, 2026, she reported her current condition on Instagram.

▶ Shinagawa Yu's official Twitter account (@shinahiro426)
▶ Shinagawa Yu's official Instagram (@shinashina0426)

He revealed his future plans, saying, "I'll be recovering at home for three days, fasting and receiving IV fluids, and will be back at work the day after tomorrow." He added, "The pain has subsided considerably, and I'm fine now, except that I can't eat." He also expressed his gratitude to those who showed concern, saying, "I'm sorry for causing you worry, and thank you for your concern."

The post also includes a link to his YouTube channel, where he discusses his medical condition in more detail.

date	Content
October 28, 2026	I reported diverticulitis on X. I received an IV drip at the hospital and was put on a three-day fast starting the next day.
October 29, 2026	She reported on Instagram that she is recovering at home. The pain has subsided considerably.
Around October 31, 2026	Plans to return to work (mentioned as "the day after tomorrow" in a post on October 29, 2026)

3. The timeline from the onset of symptoms in 2022 to the recurrence.

Shinagawa first publicly announced his diverticulitis in March 2022, when he was 49 years old.

On March 28, 2022, he complained of feeling unwell on Twitter, saying, "What's wrong? My stomach hurts..." and on March 29, 2022, the pain moved to his lower right abdomen. His wife, Nami, suspected appendicitis, so he went to the hospital, where a CT scan revealed diverticulitis. At the time, he reported, "It's not serious, but for now I'm hospitalized, on IV fluids, and fasting. No surgery will be performed."

On April 8, 2022, she announced her recovery, saying "I'm all better!", but on May 14, 2022, she revealed that her symptoms had recurred, and she dealt with it by fasting and taking medication.

season	event
March 28, 2022	Complaining of stomach pain
March 29, 2022	Diverticulitis was diagnosed via CT scan and I was hospitalized.
April 8, 2022	Reporting recovery
May 14, 2022	Reported recurrence of symptoms
October 28, 2026	Reporting diverticulitis again

4. What is diverticulitis?

A diverticulum is a condition in which a portion of the digestive tract wall protrudes outward, forming a sac-like structure. Diverticula can form anywhere in the digestive tract, from the esophagus to the large intestine, but they are most commonly found in the large intestine.

Most colonic diverticula are asymptomatic and do not cause problems, but if the diverticulum becomes inflamed ("diverticulitis") or bleeding occurs ("diverticulous bleeding"), prompt treatment is necessary. The main symptoms of diverticulitis include abdominal pain, fever, diarrhea, and nausea.

5. Reactions of Ryuichi Kosugi and others

In response to the post on X, Ryuichi Kosugi of the comedy duo Black Mayonnaise left a message saying, "Are you okay? You have a weak constitution, so don't overdo it."

Fans have also sent messages such as, "Take care of yourself, Shinagawa-san," and "It must be tough to have it recur and to have to fast."

Frequently Asked Questions (FAQ)

Q1. What illness is Yu Shinagawa suffering from?

A. It is diverticulitis. This is a disease in which inflammation occurs in sac-like structures called "diverticula" that form in the wall of the digestive tract, and we reported it on X on October 28, 2026.

Q2. When will Yu Shinagawa return to work?

A. On October 29, 2026, she revealed on Instagram that she would be returning to work the day after tomorrow, and her return is scheduled for around October 31, 2026.