My lips suddenly swelled up! What is the cause and how to cure it?

1976732 l scaled Mouth problems

Doctor, my lips suddenly swelled up...!
What is this?


There are several causes of sudden swelling of the lips.
Since the pain, itching, etc. will vary,Let's look at the possible causes of swollen lips and how to treat them!

11 Causes of Sudden Swelling of the Lips

Sudden swelling of the lips.

Sudden swelling of the lips may be caused by the following

  • HSV-1
  • Quincke's edema (angioedema)
  • cheilitis granulomatosa
  • allergy
  • psychordosis
  • stomatitis
  • cheilitis
  • stomatitis
  • Lip injury (trauma)
  • sunburn
  • dryness


Blistering and swelling disease of the lips and mouth areaIt is.

It tends to form when a person infected with the herpes simplex virus has a lowered body immunity due to stress or fatigue.

Tingling, soreness, itching, and other discomforts often occur before blistering occurs.

Most resolve spontaneously within a week or two, but symptoms settle down earlier with the use of anti-herpesvirus drugs.

Quincke's edema (angioedema)

Quincke's edema (angioedema) is,Sudden swelling of a part of the face, such as the lips or eyelidsIt is.

Swollen lips often cause symptoms in the lower lip, and in rare cases the intestinal tract may swell, causing abdominal pain and diarrhea, and the airway may swell, causing breathing difficulties and vomiting.

The swelling is similar to an insect bite, but there is no redness or itching, and it usually resolves spontaneously in one to three days.

cheilitis granulomatosa

Cheilitis granulomatosa is,Sudden, painless lump and swelling of the lips.It is.

It may be accompanied by facial nerve palsy and a grooved tongue that forms grooves on the surface of the tongue, and may recur.

Often only the upper lip is swollen, but the entire lip or part of it may swell suddenly.

It can be caused by tooth decay or allergy to metal used for coverings, and requires hospital treatment.


Allergic reactions to food, metals, etc.The lips may swell suddenly with

It may be accompanied by numbness in the lips and is more likely to occur in the lower lip.

Mild cases only cause temporary swelling of the lips, but severe allergic reactions can cause anaphylactic shock, including difficulty breathing and decreased level of consciousness, which can be very dangerous.


Psychicordosis is designated as an incurable disease by the Ministry of Health, Labor and Welfare, and is a systemic mass of granulation.

When it forms on the lips, it is characterized by painful lumps and swellingIt is.

It is more likely to occur in people between the ages of 20 and 40, and as symptoms worsen, the area around the lump may become discolored.

If a lump develops, it should be treated as soon as possible because it can be serious.


Diseases that cause inflammation of the mucous membranes of the mouthIt is.

It can be caused by bacteria, viruses, nutritional imbalances, lack of sleep, stress, and many other things.

Although it often resolves spontaneously, mouth ulcer medications, gargles, and laser therapy can help the pain and swelling subside more quickly.


Disease that causes generalized inflammation of the lips.It is.

It can be caused by incompatible lip ingredients, physical irritation from rubbing dentures or orthodontic appliances, or atopic dermatitis.

In addition to swelling of the lips, dryness and peeling of the lips may become worse, cracking and itching may occur.

The method of dealing with the problem depends on the cause and the degree of the problem.


Disease in which the corners of the mouth become inflamed, red and soreIt is.

The corners of the mouth may tear when the mouth is moved, causing pain and bleeding.

As with cheilitis, the treatment depends on the cause and severity of the disease.

Lip injury (trauma)

Lip swelling may be caused by biting the lip or bumping into an object.

Most cases heal in advance, but if the swelling is large or healing is slow, a bacterial infection may have occurred and a hospital visit is in order.


Sunburned lips exposed to ultraviolet light may tingle and swell.

Since they can dry out and peel, it is recommended that you also take UV care of your lips if they are exposed to the sun for long periods of time.


Dryness leads to damage to the lips.May cause inflammation and swelling due to cheilitis or angulus pugilistisNote that the

How to heal suddenly swollen lips

Sudden swelling of the lips.

If the lips swell suddenly, the healing process depends on the cause.

Because it is difficult to identify and cure the cause by oneself,The following three points should be considered to ensure that the appropriate treatment is received.

  • If the entire face is swollen, not just the lips, or if breathing difficulties or loss of consciousness occur, call an ambulance or seek medical attention as soon as possible.
  • If the swelling does not go away, is painful, blisters form, or recur repeatedly, see a hospital as soon as possible.
  • If the swelling subsides quickly and does not recur, wait and see.

When visiting a hospital, the following departments are available depending on the symptoms.

  • If symptoms are also seen in the mouth, such as mouth ulcers →.Dental or ENT
  • If symptoms are present only on the lips →.dermatology
  • If you have physical discomfort such as abdominal pain, diarrhea, nausea, difficulty breathing →.department of internal medicine (hospital, etc.)

If your lips suddenly swell

Sudden swelling of the lips.

There are many causes of sudden swelling of the lips, including herpes labialis, cheilitis, and allergies.

It is difficult to determine the cause on one's own, and depending on the symptoms, it may be necessary to prescribe a remedy,If the swelling does not go down immediately, see a doctor promptly.

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n10g4rn9 l03ypdEdkwpnkGLSbrpzM1zEliFJxqwjryrSAB25AeORlOrnS5iKK nUYXrnh9jZas1Ze40WJvxRSr4iXtJ365dentist General Supervisor Dentist/Yukiko Katsuya 

Graduated from Nagasaki University School of Dentistry, ~2018 Kyushu Medical Center, 2018-present Working at a dental clinic in Tokyo

UyRZkXPjQvAn5BK9ai6vfhAEgYGCePrS3Id158EZKuev 2TIlSXaZPkxY9dJ 3vCTCm7hqIEw6AzmlpdiuMD8H 9aD01UftplKrgMtn7dmYeSupervisor: Dentist/Naomi

After completing clinical training, worked in cosmetic dentistry in Tokyo. Currently a dentist and dental writer.


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