Medical Subjects: Skin

What Is Cellulitis

What is cellulitis?

Cellulitis is simply a bacterial infection of the skin. When the bacterial infection has invaded the subcutaneous fat layer of the skin, the subcutaneous fat itself is arranged in a way similar to cellulitis, so this type of inflammation is also called cellulitis.

Why is cellulitis closely related to erysipelas?

Both cellulitis and erysipelas are bacterial infections in nature, and sometimes the clinical manifestations overlap, or even some people no longer rigidly distinguish the two.

Cellulitis has traditionally been thought to be caused primarily by Staphylococcus aureus, while erysipelas is caused by hemolytic streptococcus in adults and Haemophilus influenzae in children.

How is cellulitis distinguished from erysipelas?

In general, the lesions of erysipelas are superficial, so the boundaries are relatively clear and the color is relatively bright red, making it easier for lymphangitis to occur. In addition, there are more cases of high fever, because the surface is shallow, easy to produce blisters on the skin.

How is cellulitis distinguished from necrotizing fasciitis?

Necrotizing fasciitis is often a mixed infection of aerobic and anaerobic bacteria. The disease is acute and the systemic symptoms are severe, while the local symptoms are not obvious. The infection spread rapidly along the fascia, and there was massive necrosis of the fascia and subcutaneous tissue.

Patients often have anemia, toxic shock. The skin was ulcerated and the pus was thin, and a variety of bacteria could grow in the pus culture.

How is aerogenic cellulitis distinguished from gas gangrene?

Gas-producing cellulitis should be distinguished from gas gangrene, which is preceded by severe trauma, often reaching deep into the muscles, accompanied by impaired limb or physical dysfunction, and the wound secretion has a certain fishy smell. Pus smear examination can roughly distinguish the pathogen form.


What Is The Cause Of Cellulitis

What is the cause of cellulitis?

It is mostly caused by pathogenic infection of subcutaneous loose connective tissues after skin and mucosa damage. It can also occur due to the direct spread of local suppurative infection or transmission through lymph and blood.

Most of the pathogenic bacteria are hemolytic streptococcus or staphylococcus aureus, and they can also be anaerobes, escherichia coli infection or mixed infection. Cellulitis caused by Gram-negative bacteria is occasionally seen in people with immunodeficiency.

What cause is orbital cellulitis in cellulitis?

  • After trauma around the orbit, contaminated foreign bodies and pathogenic bacteria on the surface of skin around the eye or in the conjunctival sac can enter the orbit soft tissue along the wound and cause acute infectious inflammation.
  • Eye surgery can also be the cause of orbital cellulitis, such as orbital tumor resection and postoperative infection after strabismus correction.
  • Accessory sinusitis is the most common cause of orbital cellulitis, which can also be induced by dacryocystitis, furuncle on the eyelid and face.

Why is cellulitis easy for people with low immunity?

People with poor immunity or those who use immunosuppressive agents, who have poor immune function or need to take immunosuppressive agents for life because of organ transplantation and bone marrow transplantation, will affect the normal operation of the immune system and thus increase the possibility of suffering from cellulitis.

Why is cellulitis easy for people with athlete's foot?

Hong Kong foot serious person often appear blisters, wound abscess, if careless treatment, or continuous attack, even if the wound on the foot is good, but the internal bacterial infection will appear in the distal leg, cause the cellulitis of the lower limbs.

Why is cellulitis extracted tooth easy to cause?

Some people just because of wisdom teeth (large teeth), because these root thick teeth, pull out, the wound is bigger, and because the mouth often contact with food, or the accumulation of residue, improper control of infection is also easy to cause cellulitis.

Why is cellulitis easy for diabetic patients?

Patients with diabetes mellitus are prone to the problem of incomplete wound healing in their lower limbs, which, if not handled carefully, is more likely to cause cellulitis or even local necrotizing fasciitis, necessitating amputation.

Why is cellulitis gout patient easy to get?

The thumb joint of gout patient's original foot is easily eroded by uric acid crystals. In case of bacterial infection, it is easy to aggravate the infection. Therefore, special care should be taken.

Why is cellulitis easy for patients with impaired liver function?

Patients with liver cirrhosis or liver dysfunction, decreased immune function, for bacterial infection resistance is poor, so it is easy to lead to the spread of infection, cause cellulitis.


What Symptom Does Cellulitis Have

What is the most common site of cellulitis?

It may occur directly at the site of the wound, or it may occur adjacent to the skin of the wound, more often on the face and legs.

What are the manifestations of cellulitis?

There is severe local pain in the skin of the affected part, which is diffuse swelling with unclear boundary. The affected part may have significant pitting edema, which is initially a lump, and then the center becomes soft and breaks to form an ulcer, which will form a scar after about two weeks. At the same time, the affected part may have systemic symptoms such as aversion to cold and fever.

What diseases does cellulitis often cause?

For small wounds, the skin has good self-healing ability. Even if the wound is treated carelessly, the healing time can only be prolonged. For minor abscesses, inflammations and even deeper wounds, scar granulation tissue will grow after healing.

But you probably didn't expect some wounds to be serious or even severe. Severe complications of cellulitis include toxic shock and sepsis.

Why is orbital cellulitis the most serious type of cellulitis?

Orbital cellulitis is an acute suppurative inflammation occurring in the soft tissues of the orbit. It is often considered a critical condition because it can cause permanent loss of vision and can be life-threatening through intracranial extension or sepsis. It can occur at any age and is more common in children.


How To Check For Cellulitis

Why should bacteriological examination be carried out for the patients with multiple and repeatedly infected cellulitis?

For multiple and repeated infections, the pus can be directly extracted from the abscess for bacterial culture, and the positive result is helpful for the diagnosis of bacteria. Drug susceptibility testing can provide a scientific basis for clinical drug treatment when pus bacteria are cultured.


How To Prevent Cellulitis

In order to avoid the occurrence of cellulitis, how to treat the wound after injury?

  • Rinse with plenty of water: first clean the wound, if there is normal saline is better.
  • Disinfection and sterilization: drugs that can be used for external disinfection and sterilization. If the wound is serious, preventive oral antibacterial drugs should be taken under the guidance of the doctor.
  • Wrap the wound moderately: the purpose of covering is to avoid external bacteria.
  • Local ice application: Local ice application can control the expansion of inflammation and relieve pain.
  • Avoid alcohol use: alcohol use can make wounds worse and can interfere with healing.

How To Treat Cellulitis

What department does cellulitis look at?

General surgery, dermatology, or special parts need to see the corresponding specialist, such as ophthalmology, maxillofacial surgery, etc.

How is cellulitis local treatment?

In the early stage when there was no local fluctuation, 50% magnesium sulfate could be used for local wet and hot compress or external application of drugs. Ultraviolet ray, infrared ray, etc. should be combined to promote abscess localization; Once the abscess has formed, an incision should be made to drain it.

  • For cellulitis in the floor of the mouth and under the jaws, after a short period of active anti-infection treatment is invalid, should be cut as early as possible decompression, in case of laryngeal edema compression caused by suffocation of trachea.
  • Early incision and decompression should also be performed for cellulitis of fingers to prevent osteonecrosis of fingers.
  • In the case of twirling cellulitis, an extensive incision and drainage should be performed with the necrotic tissue removed and the wound rinsed with a 3% hydrogen peroxide solution. After the pus is discharged, heat transmission methods such as ultrashort wave and microwave can be selected to promote local blood circulation, grow granulation tissue and accelerate wound healing.

Why should cellulitis undertake peripheral blood examination?

General infection, white blood cell count > 10 x 109 immature white blood cells > 0.1%, or toxic particles, should be vigilant concurrent septic shock and sepsis. Elevated white blood cell counts are commonly associated with elevated neutrophils.

How does cellulitis use medicine?

Antibacterial drugs are one of the most important measures for the treatment of cellulitis. The principle of use is to select targeted and sensitive drugs according to the results of bacterial culture and drug sensitivity test. Before the drug sensitivity results are obtained, the relatively targeted broad-spectrum antibacterial drugs can be selected according to the pus smear examination.


What Should The Patient Of Cellulitis Notice In Life

How to nurse cellulitis?

Ensure adequate rest. Severe infection should be appropriate to strengthen nutrition, supplement heat and protein, enhance the ability to fight infection. Patients should stay in bed, drink more water, and raise the affected limb to reduce local swelling and pain. In addition, we should pay attention to the clean skin and clothing, to prevent re-infection.Ensure adequate rest. Severe infection should be appropriate to strengthen nutrition, supplement heat and protein, enhance the ability to fight infection. Patients should stay in bed, drink more water, and raise the affected limb to reduce local swelling and pain. In addition, we should pay attention to the clean skin and clothing, to prevent re-infection.

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