Internal Medicine

Welcome to the internal medicine of !
The following is an overview of our pages on internal medical conditions with detailed information on diseases of the internal organs, such as the lungs, the liver, the heart or the kidney.

Diseases of the lung

The lungs are responsible for supplying the whole blood with oxygen. Because the lungs are in direct contact with the environment via the inhaled air, pathogens such as viruses or bacteria can easily enter the lungs and cause diseases such as pneumonia. Pollutants also get into the lungs, for example when smoking.
The most important diseases of the lung include:

  • lung infection
  • bronchitis
  • pulmonary embolism
  • bronchial asthma
  • COPD ( Chronic Obstructive Pulmonary Disease)
  • lung cancer
  • Water in the lungs (pulmonary edema)
  • lung pain
  • Burning in the lungs
  • Inhalation pain

Diseases of the liver

The liver is the central metabolic organ in humans, and its tasks include the processing of food components and the elimination of toxins. Therefore, it is damaged, for example, by increased consumption of alcohol or drugs. Liver diseases have far-reaching consequences for the entire body.
Here is an overview of all diseases of the liver and their symptoms:

  • Inflammation of the liver ( hepatitis)
  • cirrhosis
  • Liver cancer ( hepatocellular carcinoma )
  • Jaundice ( jaundice )
  • ruptured liver
  • Hemangioma of the liver
  • Increased liver values
  • Enlarged liver
  • liver pain
  • hepatomegaly

Diseases of the heart

The supply of blood to the body is ensured by the beating heart. Tissue that is not supplied with blood is destroyed. Therefore, the consequences of heart disease are dangerous and momentous. Diseases of the heart are typically more likely to occur in old age. They are the most common cause of death in Germany.
Here is an overview of all diseases of the heart and their symptoms:

  • Coronary heart disease ( CHD )
  • Heart attack
  • Arrhythmia
  • Heart failure ( heart failure)
  • Myocarditis ( myocarditis)
  • Water in the pericardium ( pericardial effusion )
  • Increased heart rate ( tachycardia )
  • palpitations
  • Herzstolpern
  • palpitations
  • heart pain

Diseases of the kidney

The kidney filters the blood, producing the (primary) urine. In the context of kidney disease, the filtration capacity usually decreases, which is why more water is retained in the body and stored. The result is edema. Also, the protein balance, the production of certain hormones and especially the blood pressure are affected in diseases of the kidney.
Here is an overview of all kidney diseases and their symptoms:

  • Kidney stones
  • Renal Failure ( Chronic Renal Failure )
  • Acute kidney failure
  • Kidney inflammation ( glomerulonephritis)
  • Pyelonephritis
  • renal cyst
  • renal artery stenosis
  • kidney cancer
  • kidney enlargement
  • kidney pain

Thyroid disorders

The most important task of the thyroid gland is the production of the thyroid hormone (thyroxine). Thyroxine has far-reaching tasks in the body and has a stimulating effect on blood pressure, heart rate and metabolism. An overproduction or deficiency of the hormone has correspondingly far-reaching consequences.
Here is an overview of our sites on thyroid disorders and their symptoms:

  • thyroiditis
  • Hypothyroidism
  • Hashimoto's thyroiditis
  • Hyperthyroidism
  • Graves' disease
  • Node in the thyroid gland
  • Thyroid
  • Pain on the thyroid gland

Diseases of the esophagus

The esophagus connects mouth and stomach. Your mucous membrane is exposed to all foods that we eat, and possibly also stomach acid. Diseases of the oesophageal mucosa are therefore a fairly common disease and lead to unpleasant symptoms when eating or at rest.
Here is an overview of our pages on esophageal disorders and their symptoms:

  • heartburn
  • esophagitis
  • esophageal cancer
  • achalasia
  • Mallory-Weiss syndrome
  • esophageal tear
  • esophageal varices
  • Burning in the esophagus

Diseases of the stomach

The stomach connects to the esophagus, whose tasks are the storage of ingested food and the first steps of digestion. Due to the aggressiveness of gastric acid, mucous membrane of the stomach must withstand special requirements, but at the same time it is also susceptible to diseases such as inflammation or an ulcer.
Here you will find everything related to diseases of the stomach and their symptoms:

  • Gastrointestinal infections
  • gastritis
  • stomach ulcer
  • gastrointestinal bleeding
  • stomach cancer
  • Stomach cramps and diarrhea
  • stomach pain
  • stomach pain

Diseases of the intestine

There are many diseases of the intestine, which is several meters long. Especially chronic diseases play a role here. They can lead to permanent pain and persistent digestive problems. In old age, almost all people develop polyps of the intestinal mucosa, which can degenerate to a small extent into cancer. Therefore, a regular colonoscopy should be done.
Here you will find an overview of our pages on diseases of the gastrointestinal tract and their symptoms:

  • Inflammation of the intestine
  • Crohn's disease
  • Ulcerative colitis
  • diverticulosis
  • polyps
  • colon cancer
  • digestive problems
  • bloating
  • Pain in the colon

Diseases of the diaphragm

The diaphragm separates the chest from the abdomen. It is criss-crossed with muscles whose contraction plays a vital role in breathing. Damage or abnormalities of the diaphragm can therefore lead to disturbances of the respiratory system and the limitation between the thoracic and abdominal organs.
Here is an overview of our pages on diseases of the diaphragm:

  • diaphragm inflammation
  • diaphragmatic hernia
  • diaphragmatic hernia
  • Zwerchfellhochstand
  • diaphragm spasm

Interactive from internal medicine

How good is your immune system? Do our self-test immune system and see if you have a good immune system.
Or do you like quizzes? Then take our quiz around the topic of internal medicine.


Sexually transmitted diseases are a major problem, especially in developing countries. But also in Germany one should take them seriously and protect themselves sufficiently. Because not only the most well-known sexually transmitted disease AIDS, but also many further illnesses like cervix cancer and other cancers, can be triggered by venereal diseases.
Here you will find an overview of our pages on venereal diseases:
The most important ones are:

  • Human papillomavirus ( HPV, triggers cervical cancer )
  • chlamydia infection
  • gonorrhea
  • syphilis
  • HIV & AIDS
  • hepatitis
  • Genital herpes ( genital herpes )

Oncological diseases from the inside

Almost all cells of the body can degenerate and cause a cancer, including the internal organs. Here you will find an overview of the most common cancers of internal medicine:

  • lung cancer
  • colon cancer
  • stomach cancer
  • esophageal cancer
  • liver cancer
  • Gallbladder cancer
  • pancreatic cancer
  • Thyroid
  • kidney cancer


The infectiology deals as the name suggests with infectious diseases. These are all illnesses caused by pathogens, primarily bacteria, viruses and fungi. The fight against infection routes and sources in the hospital and the observation and control of disease outbreaks fall into the field of infectiology.
Everything about the topic of infectious diseases can be found here:

  • Epstein-Barr virus
  • candidiasis
  • malaria
  • Dengue fever
  • yellow fever
  • Ebola
  • tuberculosis
  • Nosocomial infection
  • contact infection
  • droplet infection


Hematology deals with diseases of the blood and blood-forming organs. These diseases include malignant diseases such as blood cancer (leukemia), but also more common medical conditions, such as coagulation disorders or thrombosis, are treated in hematology.
Here you will find detailed information about hematology:

  • Hemophilia
  • bleeding disorder
  • Inflammation in the blood
  • Anemia
  • Factor 5 Leiden disease
  • Thrombocytopenia ( platelet deficiency )
  • thrombophilia
  • blood cancer


In endocrinology, disorders and dysfunctions of the body's glands are dealt with. Because glands produce mainly hormones, endocrine disorders are mostly hormonal disorders.
Here you will find detailed information on the most common diseases in endocrinology:

  • Diabetes mellitus
  • Diabetes insipidus
  • Cushing syndrome
  • Addison's disease
  • Hyperthyroidism
  • Hypothyroidism
  • Parathyroid hyperfunction ( hyperparathyroidism )
  • Parathyroid gland function ( hypoparathyreodism )

stomach pain

Abdominal pain is one of the most common symptoms that can occur with internal disorders. Every German suffers from abdominal pain several times a year. Not only diseases of the gastrointestinal tract, but virtually all internal diseases can trigger abdominal pain, for example, even a heart attack.
Here you will find detailed information about abdominal pain:

  • What helps with abdominal pain?
  • Abdominal pain after eating
  • Abdominal pain in the upper abdomen
  • Abdominal pain with back pain
  • Upper abdominal pain in pregnancy
  • Abdominal pain at night
  • Right-sided abdominal pain
  • Left-sided abdominal pain
  • Abdominal pain with a headache
  • Abdominal pain due to antibiotics

allergy issues

In an allergy, immune reactions of the body occur when it comes into contact with certain substances (so-called allergens ). This is a malfunctioning overreaction of the body, as these allergens are usually not infectious and completely harmless to non-allergic people. There are several types of allergy reactions, for example the immediate type (type I) and the delayed type (type IV), which only occurs after hours to days.
Here you will find detailed information about allergy:

  • Allergic reaction
  • Allergy - emergency kit
  • Therapy of an allergy
  • Dog dander
  • Allergy to cats
  • Food allergy
  • House dust allergy
  • hay fever
  • pollen allergy


Most people associate the term "convulsions" with a painful permanent contraction of the musculature, for example in the calf. As a symptom of internal diseases it can also lead to convulsions. However, these are not directly based on a permanent contraction of muscles, but rather a sharp pain, which is perceived as a cramp.
Here you will find detailed information about convulsions:

  • stomach cramps
  • Cramps in the intestine
  • Cramps in the upper abdomen
  • Spasms in the abdomen
  • Cause of convulsions
  • Nocturnal muscle spasms

high blood pressure

20-30 million people in Germany suffer from hypertension. It is the most important risk factor for cardiovascular diseases, which in turn is the leading cause of death in Germany. High blood pressure, for example, massively increases the risk of a heart attack or stroke.
Here you will find detailed information on hypertension:

  • These symptoms can be recognized by hypertension
  • Therapy of hypertension
  • Lower blood pressure
  • Homeopathy for high blood pressure
  • Hypertension and sports
  • Systole too high
  • Diastole too high
  • Gestational hypertension


A thrombosis is the occlusion of a blood vessel through a blood clot. Basically both veins and arteries can be affected. While arteries are more likely to speak of "arterial occlusion, " the term "thrombosis" is used primarily for venous occlusion. This typically affects the deep veins of the leg. Risk factors include long periods of sitting (eg air travel), bed misbehavior (eg after surgery), pregnancy, taking the pill and many more
Here you will find detailed information about thrombosis:

  • Causes of thrombosis
  • Pain in a thrombosis
  • How can you recognize a thrombosis?
  • Thrombosis in the leg
  • Deep vein thrombosis
  • thromboprophylaxis
  • Thrombosis in pregnancy
  • Thrombosis taking the pill

Rheumatic diseases

Rheumatic diseases are commonly referred to as "rheumatism". This usually means a joint disease of the smaller joints, especially rheumatoid arthritis. The so-called " diseases of the rheumatic type ", as the physician says, but also include diseases such as ankylosing spondylitis, rheumatic fever or psoriatic arthritis.
Here you will find detailed information about rheumatism:

  • How to recognize rheumatism?
  • Rheumatoid arthritis
  • ankylosing spondylitis
  • Polymyalgia rheumatica
  • fibromyalgia
  • psoriatic arthritis
  • Reiter's syndrome
  • Reactive arthritis
  • giant

Circulatory disorders

Circulatory disorders are generally understood as an undersupply of a particular body part or organ with blood. This can happen when the supplying blood vessels, the arteries, are narrowed or blocked. At the heart this is called a heart attack. The risk factors include smoking and arteriosclerosis.
Here you will find an overview of our topics around circulatory disorders:

  • arteriosclerosis
  • Circulatory disorders due to smoking
  • Circulatory disorder in the arm
  • Circulatory disorder in the legs
  • Circulatory disorder in the feet
  • Circulatory disorder in the finger
  • Circulatory disorder of the heart
  • Therapy of circulatory disorders

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