Types and symptoms of subcutaneous parasites in humans

There are many parasites that can inhabit human skin. Such worms were first found in India, but are now found in other latitudes. Parasites under the skin cause a lot of discomfort to a person and require treatment. They are not as dangerous as worms in other organs, but with a long course of the disease they can lead to serious complications. In our article we will list all the types of subcutaneous parasites, the symptoms of the diseases they cause.

Varieties of subcutaneous parasites and methods of infection

If you want to know who crawls under the skin, then the following subcutaneous parasites are found in humans:

1. Dirofilariasis. This condition causes the nematode larval stage. The infection occurs when a mosquito (lice, flea or tick) bites the disease. A sexually mature person reaches a length of 30 cm and the larva of this parasite is tiny. After infection, it grows under a person's skin for 3 months. Domestic cats and dogs can also transmit the infection.
2. If we list which parasites live under the skin, then we can not fail to mention filariae. The infection is caused by certain types of nematodes. In this case, various diseases arise: oncocerciasis, bipetal nematode, tuberculosis and mensellosis. The carriers of the worms and their intermediate hosts are the insects (mosquitoes, gnats, horse flies, etc. ). They infect human larvae with larvae, resulting in the appearance of worms on the skin.
3. Another skin parasite in humans is the cysticercus larvae. They cause cysticercosis. The infestation is through the intestines, where the worms penetrate with dirty hands, water or food. Cysticercus is an ovoid vesicle that contains the parasite scollox inside. Subcutaneous worms can change from round to spindle-shaped. Man acts as an intermediate master.
4. Schistosomiasis is a disease caused by worms in a person with tremor. These are worms up to 2 cm long. The larvae of this parasite, which can swim in water, are cercariae. They can penetrate the human body directly through the skin. This infection can live on any organ, even under the skin.
5. Rishta is another worm under the skin. These white worms cause dracunculiasis and are classified as large nematodes. Their intermediate hosts are waterfowl that live in water. First, the parasite enters the human stomach and then from the retroperitoneal space penetrates the skin. Males reach a length of 10 cm and females - 120 cm.

Symptoms of dirofilariasis

The blood-sucking larvae of this circulatory parasite can spread throughout the body and settle in the eyes, pulmonary artery, heart, serous cavities, perinephric adipose tissue and under the skin. If there is an invasion of a type of worm called Dirofilaria repens, the conjunctiva or subcutaneous fat is affected.

The signs and symptoms of this disease are as follows:

• painful seals appear at the site of the insect bite.
• within a few days in one third of patients, there is a displacement of the seal by 20-30 cm from the point of the bite.
• a person may feel stretching, burning and itching at the site of the bite.
• there is a sensation crawling and swaying under the skin.
• Periods of recession are followed by episodes of ups and downs.
• the subcutaneous worm causes abscesses and boils (inside them, a worm lives in the connecting capsule).
• Sometimes the abscesses open on their own and the white parasites crawl out of the skin.

If the conjunctiva is damaged, then there are the following symptoms:

• swelling, itching and watery eyes.
• a feeling that there is a foreign body in the eye or eyelid.
• a person can not fully open the eyelid.
• vision deteriorates.
• a worm can be seen below the conjunctiva.
• a lump is visible under the skin of the eyelid.
• the person has a sensation crawling under the skin or in the eye.
• if the parasite enters the eyeball, diplopia and swelling of the eye occur.

Great! Dirofilariasis is accompanied by nerves, fears and insomnia. The patient also shows irritability, headaches, general weakness and other signs.

Symptoms of filariasis

After the invasion, filariasis can develop for several years. Different symptoms and signs can develop depending on the form of the disease. Common to these parasitic diseases will be the appearance of ulcers and skin rashes, damage to the eyes and lymph nodes, fever, the development of elephantiasis of the scrotum and limbs, since they are muscle parasites.

Tumor cancer

With oncology, parasites in the human muscles manifest with the following symptoms:

• itchy skin?
• feverish condition;
• weakness;
• dryness and peeling of the skin.
• skin hyperpigmentation (genitals, legs, axillary and inguinal folds).
• Blistering rash;
• erysipelas;
• The papules can form long-lasting ulcers.
• under the skin, worms cause atrophy of the hair follicles, sweat glands and epidermis.
• painful fibrous nodules form under the skin.
• with eye lesions, develops glaucoma, iridocyclitis, conjunctivitis, corneal cyst, keratitis and other eye diseases.

Dipetalonomatosis

These subcutaneous worms in humans cause the following symptoms:

• enlarged lymph nodes;
• erythematous or maculopapular rash.
• dizziness;
• fever;
• swelling of the lower extremities, face and genitals.
• joint pain?
• heart pain;
• symptoms of meningoencephalitis.

Λοΐασις

The parasites that live under the human skin, with infection, contribute to the appearance of the following clinical picture of the disease:

• skin rashes;
• feverish condition;
• parasites on human muscles can cause muscle abscesses.
• pain in the extremities;
• swelling of the skin in limited areas, which does not subside for a long time.
• if parasites enter the eyes, blepharitis or conjunctivitis develops.
• Disorder of urination with detection of infection in the urethra.

Great! These subcutaneous parasites in humans can lead to complications in the form of meningitis, heart failure, encephalitis.

Mansonellosis

With this form of the disease, worms under the human skin can cause the following set of symptoms:

• itchy rashes;
• joint pain?
• feverish condition;
• swelling of the skin;
• testicular drip;
• numbness of the limbs;
• inguinal lymph node enlargement.

Symptoms of cysticercosis

These parasites on human skin can easily penetrate with food into the digestive tract, where the fetal membrane dissolves and the larva emerges. They enter the bloodstream and are transported throughout the body. Once installed in certain organs, the larvae turn into cysticercus and cause the following symptoms:

• under the skin, appear multiple or single, tumors, painless, oval formations (usually located on the inside of the shoulders, the top of the chest and the palms).
• on the seals, you can feel the cavity.
• over time, these seals grow.
• new formations appear.
• while conducting a training histology, a cysticercus can be found inside.
• urticaria;
• Rarely, the nodes are soaked, but more often they do not change for many years and occasionally go away on their own.

Symptoms of schistosomiasis

Schistosome larvae can penetrate human skin directly from the aquatic environment. Within a few hours, it can be in the bloodstream. With the invasion of the skin, the following symptoms appear:

• urticaria;
• severe itching;
• spotted rashes appear every other day.

This is followed by a period of rest for several weeks. In the circulatory system, schistosomes reach the stage of sexually mature individuals and migrate to the vessels of the urogenital system. After a few months, the patient develops the following symptoms:

• dry cough;
• feverish condition;
• urticaria;
• heavy sweating at night.
• enlargement of the liver;
• vaginal bleeding;
• blood in the urine;
• pathology of the prostate, kidneys and bladder.
• nodes in the genitals.
• infertility.

Great! In childhood, schistosomiasis contributes to reduced learning ability, anemia, developmental delay and memory impairment.

Symptoms of Dracunculiasis

If a person drinks water containing infected buckwheat, then after their death, the helminth larvae are released into the patient's digestive system. They penetrate the retroperitoneal space and migrate through the lymphatic system to the soft tissues. Only after 3 months can the female of this parasite invade the skin or connective tissues for further growth. As the female grows, the patient develops the characteristic symptoms of the disease:

• An allergic reaction to the infection occurs only after 10-14 months in the form of urticaria, fainting, nausea, diarrhea, vomiting and suffocation.
• a year later, a bladder rishtosis appears on the skin (its diameter reaches 2-7 cm, but there are no signs of inflammation).
• you can see a helminth in the bladder.
• After a few days, the bubble itself opens and the necrotic masses are discarded.
• on autopsy, the patient feels a burning sensation and sharp pain.

It is worth knowing! Ristose blisters are usually found on the skin of the feet, but can sometimes be on the stomach, arms and other parts of the body. Also, the female can be installed in the connective tissues of the joints. In this case, its immobility, contraction and inflammation of the sac appear.

With a secondary infection, there may be phlegm, abscess, sepsis and gangrene. If a patient with an open bladder falls into a tank, then thousands of larvae will be swallowed again by crustaceans, which will cause the infection to spread further.