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What is Hanahaki Disease? 2024

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What is Hanahaki Disease? 2024

What is Hanahaki Disease? 2024

The Hanahaki Disease is an illness born from one-sided love, where the patient throws up and coughs up flower petals when they suffer from one-sided love. The infection can be removed through surgery, but the feelings disappear along with the petals.

Hanahaki Disease Definition

The Hanahaki Disease is an illness born from unrequited love, where the patient’s throat will fill up with flowers; they will then throw and cough up the petals (sometimes even the flowers).

One of the only ways for the disease to ‘disappear’ is if the person returns the feeling (it can’t be resolved with friendship; it has to be genuine feelings of love).

The infection can also be removed through surgery, though the feelings disappear along with the petals. If they choose neither option, or the feeling is not returned in time, the patient’s lungs will fill up with flowers and eventually suffocate.

There is no specific flower for the disease, but it’ll either be the crush’s favorite type of flower or their favorite color. We can only hope for the patients and pray that the crush’s favorite flower isn’t a type of rose.

(The length of the disease varies with each person. On average, it will last up to 2 or 3 months, but sometimes it’ll only last a few weeks).

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For Example

The sight was sickening; the body lay limp on the carpet. Stained petals and flowers surrounding them, swirling in a pool of their own blood. I took a deep breath. Then, I turned to the rest of the group, keeping my head low. ‘Who said love couldn’t kill?’ I let out a low laugh.

“Darn you, Hanahaki Disease,” I curse under my breath. Tears threatened to fall.

The illness known as Hana-Haki causes the sufferer to cough up flower petals

The Japanese terms “Hana” (which means “flower”) and “hakimasu,” which means “to throw up,” are the origin of the name HanaHaki.

You may come across as emotional if you have a rapid change in emotion, such as being quickly furious, upset, excited, or nervous. Yet, rest assured that you are not by yourself. Have you ever had physical changes along with such intense emotions?

For instance, when you are delighted, your chest may feel warm and full; likewise, when you are tense (for instance, before exam results), your stomach may be filled with butterflies. Whether or not you want to accept it, these are normal bodily reactions to experiencing emotions.

Imagine yourself in a heartbreak situation and suddenly starting to vomit flower petals. It seems strange and unrealistic. Indeed, it is! Guess what? This unreal state of affairs even has a name! The illness is known as Hana-Haki. Yet, does it exist there? Let’s investigate!

HanaHaki: A fictitious disease

You’re not crazy if you think it’s strange when someone vomits flower petals because they’re sad. Why? Because it isn’t even remotely accurate. Well, so how does it exist if it isn’t real? It is confirmed in the same way that Batman or Sherlock Holmes is. We do indeed mean fiction.

It says as much in its definition. It’s a made-up condition that people get when they experience unrequited love. The terms “Hana,” which means “flower,” and “hakimasu,” which means “to throw up,” are combined to form the name HanaHaki. Coughing up flower petals, the primary symptom of Hana-Haki illness, results from combining the two words.

How and when did the HanaHaki sickness first appear?

2009 would mark that time. Hanahaki Otome, also known as The Girl Who Spit Flowers, is a shoujo manga (Japanese comics) that first featured the HanaHaki sickness. Naoko Matsuda, a well-known manga author, wrote it.

The main character in this story is afflicted with a slow-moving illness that starts with an intense chest discomfort that feels like the heart and lungs are blooming with misery. It gradually progresses to stomach grumbling and vomiting.

A teenage girl named Katsuki, who suffers heartbreak, is the story’s center. She starts with typical heartache symptoms, similar to those of a moderate depressive episode. However, when she coughs up flower petals, it escalates over the months into something more serious. 

When her illness has reached its worst, she has even been known to vomit a whole flower all at once. She is instantly diagnosed with HanaHaki, but sadly, she passes away.

It’s fascinating to note that despite the tragic conclusion, the book and its trope gained popularity for their extreme melodrama, beauty, and agony. In actuality, it was thought that dying by HanaHaki was a sorrowful but beautiful theme.

Due to the fascination of manga and anime authors and fans throughout East Asia, particularly in Korea, China, and Japan, the HanaHaki sickness later became a rage.

Is this fictitious illness treatable?

No, and yes! The victim can get better if the other person changes their mind and feels the same way about them or the victim. Another choice is surgery. Similar to the sickness, some skilled imaginary doctors can operate to remove the blooms.

As a result, there is no possibility of the love feelings returning. That is certainly intriguing.

Is the Hanahaki disease real? Facts in 2024

No. It is a fictional illness when someone who loves you doesn’t love you back. Often seen in characters in fan fiction, someone infected with Hanahaki disease will have a throat that fills up with flowers, and they cough out the petals.

If the person’s love is returned, then the disease is cured. The other “cure” is surgical removal, and along with the flowers, the feelings are removed as well. If left untreated, it is said that the flowers will suffocate the lungs, and the lovesick person will suffocate and die.

While certainly a dreadful faux demise, I recommend googling Hanahaki and looking at the images, as the illustrations are fascinating! It is a fictional disease that is born from one-sided love.

The patient/victim is affected because their crush/attraction hasn’t returned their feelings. The Hanahaki Disease has the victim coughing up bloody flower petals because the disease occurs in the lungs.

The disease can be cured, but the feelings for that person disappear. The person can return the feelings, and the disease would stop affecting the person.

For Example:

Hanahaki disease is not real. Just like we have the titular virus in Dan Brown’s novel, The Inferno, the Hanahaki disease is a work of fiction. We could call it lovesickness because it involves love and romance.

Okay, now you know that the Hanahaki disease is not real and never would be. But I wrote more about this fictitious disease, which you would find interesting. Continue reading!

When one develops this fictitious disease called Hanahaki, many things can happen. It is reported that people who suffer from this disease cough up flower petals.

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Now, the factor responsible for this sickness is unrequited love. It simply means loving someone and not getting loved in return.

Let me use John (a man) and Janny (a woman) to demonstrate the meaning of this disease. Assuming both of them (Peter and Jane) are close. John loves Janny to the point that he can take a bullet for her.

Unfortunately, the relationship is one-sided. John loves Janny, but Janny doesn’t love or feel the same way. According to the Hanahaki disease, John may have developed this disease due to unrequited love. In this case, his lungs will become filled with flowers and their roots in his respiratory tract.

The only way John can improve is for Janny to return his love. The disease can also be removed via surgical operation. But if urgent action is not taken, the victim may die.

What are some fictional diseases like Hanahaki Disease?

Hanahaki isn’t the only fictional disease we have heard of, and won’t be the last. The entertainment industry and fictional writers always cook things to inspire their audience.

So, we would see more of the Hanahaki-type of diseases as time progresses. There are tons of other conditions that are similar to Hanahaki. They are fictional diseases that are not real.

But let me tell you something: almost all fictitious diseases have a real-world equivalent. In other words, their creation was inspired by the real-life illness itself.

Let’s go over the different diseases:

Mad Snail Disease:

Remember the widespread mad cow disease that hit the news now and then? The illness gave birth to the Mad Snail Disease. The Mad Snail disease isn’t real. The term was used in the popular cartoon program SpongeBob.

This disease, as depicted in the cartoon, developed following a bite from an infected snail. And once bitten, the victim develops messy pants, bloodshot eyes, loss of balance, and untrimmed toenails.

Mad Zombie Disease:

Have you watched Zombieland or The Walking Dead? These are movies where humans are portrayed as brain-eating monsters. The Mad Zombie Disease is also a work of fiction. There is nothing real about it.

According to those behind the idea of the Mad Zombie Disease, it is said that one bite transforms an individual. Now, guess the real-world equivalent of this disease. Well, it’s the mad cow disease once again!

Ancient virus:

The ancient virus is a rare viral strain found in Queen ant genes. It was discovered by ‘Alexia Ashford’ when she was studying ants. When combined with the progenitor virus, it creates the powerful t-Veronica virus.


Sexually transmitted diseases exist. They can also move from one human to another. Now, what about the interaction between a human and a robot? Don’t you think a sexually transmitted disease when humans have intercourse with robots can occur?

Well, with all the numerous sex dolls coming from Japan and the rate at which people patronize them, a day will come when diseases like this can manifest.

But I hate to break it to you that Electrogonorrea isn’t real. And it never existed, which is good news for sexually active toasters out there.

Angel toxicosis:

It causes the victim to lose the ability to taste, sleep, cry, feel pain, and talk. It also increases the victim’s hearing, strength, and sight abilities.

As well as eliminating the need to eat and sleep. In the early beginnings, victims can gain crystal-like wings and fly until the disease is destroyed. The final stage of this disease causes the victim to give up their heart and memory.

Bendii syndrome:

Another disease you may hear for the first time is “Bendii syndrome.” It’s also not a real disease like Hanahaki. But the concept looks scary, and yes, it has a real-world equivalent.

According to those behind the idea, the Bendis syndrome is a generative neurological illness. 

It affects the elderly Vulcans – a group of fictional extraterrestrial humanoid species from outer space. The disease is believed to cause fever, weakness, fatigue, and emotional control.

Now, the real-world equivalent of this disease is Alzheimer’s disease. It’s a disorder that can cause the brain cells of humans to waste away. That is, degenerate and die. Alzheimer’s disease destroys one’s memories, including other forms of mental functions.



If you haven’t read any of Dan Brown’s novels, the Inferno should help change your mind. But Dan isn’t new in the game. He has written several books, including The Da Vinci Code, Angels and Demons, and many others.

However, the Inferno is his latest mystery and detective fiction book. In the book, Dan wrote about the titular virus, which isn’t real.

According to the book, the titular virus renders its victims infertile and is waterborne. But the villain in the book wanted it to destroy many people’s lives and decided to make the virus airborne.

One amazing thing you need to know about this titular virus is that it has a real-world equivalent, and it’s called the “Infamous Black Plague.”

Can You Catch HanaHaki Disease?

It looks different for different people. The trick is to try out different methods and do plenty of self-reflection. That’s how you can figure out what works for you.

For many people, pausing and taking a few deep breaths helps them manage their emotions. Others find it helps to listen to music, read a book, or exercise.

Stepping away from a difficult situation helps many people manage their emotions. If you’re feeling overwhelmed by emotion, try taking a break.

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Cook and eat a meal. Go for a long walk. Do something you enjoy to get your mind off of it. When you come back, you’ll probably feel more able to handle the issue—and your reaction to it.

You may not be at risk of catching HanaHaki Disease, but heartache can feel like an illness. Have you ever found yourself nursing a broken heart?

We hope not! If it ever does happen, try out a few of the strategies we talked about. You may be surprised how much better you feel.

Find a friend or family member who can help you with these activities!

Everyone has their way of regulating their emotions. Talk to an adult you know, like a family member, teacher, or doctor. Ask them how they regulate their emotions. Can they offer you strategies to try? What works best for them?

HanaHaki isn’t the only fictional disease out there. Read about a few others, like Dragon Pox or Hawaiian Cat Flu. Do you think either of these illnesses could have had real-world inspiration? Discuss with a friend or family member.

Think about the last time you felt a very strong emotion. Why were you feeling the emotion? How did you feel physically? What were you thinking about? How did you react to how you felt? Write a short personal narrative about how you felt and reacted to it.

Final words:

Hanahaki Disease is an illness born from one-sided love, where the patient throws up and coughs up flower petals when they suffer from one.

Hanahaki Disease (花吐き病 (Japanese); 하나하키병 (Korean); 花吐病 (Chinese)) is a fictional disease in which the victim coughs up flower petals when they suffer from one-sided love. It ends when the beloved returns their feelings (romantic love only; strong friendship is not enough) or the victim dies. It can be cured through surgical removal, but when the infection is removed, the victim’s romantic feelings for their love also disappear.

The trope was popularized in East Asian fandoms (Korean, Japanese, Chinese) before Westerners used it. In fandom, it appears most frequently about BL pairings.

The Hanahaki Disease trope is not used exclusively within fandom – many people have become intrigued by the concept and created non-fannish artwork, poetry, songs, music videos, and other creative works based around the concept. However, Hanahaki Disease is particularly popular within fandom due to its potential for angst, hurt/comfort, pining, and general romantic tension.

There is no set time for how long this disease lasts, but it may last from 2 weeks to 3 months, in rare cases up to 18 months, until the victim dies unless the feelings are returned, or the plants are surgically removed. There are no set flower songs, but it may be the enamored’s favorite flower or favorite color.

HanaHaki Disease

Hanahaki can be cured through surgical removal of the plant’s roots, but this excision also removes the patient’s capacity for romantic love. It may also erase the patient’s feelings and memories of the enchanted. The reciprocation can also cure the victim’s feelings.

These feelings cannot be feelings of friendship but must be feelings of genuine love. The victim may also develop Hanahaki Disease if they believe the love to be one-sided, but once the enamored return the feelings, they will be cured.

In some literature, other symptoms can be fever, uncontrollable shaking, loss of appetite, low body temperature, and hallucinations. Even after curing, with or without surgery, there can be irreversible damage to the lungs, and although very rare, the disease cannot be cured in some cases.

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