Frequent Diseases

Frequent Diseases

The MEDoctor symptom checker covers 4500 symptoms and more than 850 diseases. Among the frequent diseases or ailments, our user can have the following commonly detected:

Back pain

Back pain is comprised of several forms of pain, which can be : upper back pain, lower back pain, middle back pain or low back pain with sciatica. There are numerous causes to back pain, such as nerve and muscular problems, degenerative disc disease and arthritis. Some are self-inflicted due to a long duration of bad habits. Other back pain causes include accidents, muscle strains, and sports injuries.Usually, pain medication or pain killers may relieve back pain. All most 100% of the population has experienced some form of back pain sometime in their lives. But back pain may also be a symptom of another more serious ailment. For detecting this, MEDoctor may be quite helpful.

Knee pain

Knee pain can have an underlying causality, whether single-sided or in both knees. It can be an overuse injury, a sudden injury or by an subsequent condition, such as arthritis. Symptoms of knee injury can include pain, stiffness and swelling. Many people have a minor knee problem at one time or another, especially when aging. But knee pain can also indicate a more serious kind of disease. Start your MEDoctor health assessment with knee pain and discover if that pain isn’t a symptom of something much more serious.

Breast cancer

Developing breast cancer is conditioned by several factors, which include drinking alcohol, obesity, ionizing radiation, early age at first menstruation, lack of physical exercise, hormone replacement therapy during menopause, and having children late or not at all. Also, about 5%–10% of breast cancer patients carry particular genes inherited from the parents, which are mainly BRCA1 and BRCA2, among others. In short, breast cancer is the development of carcinoid cells in breast tissue. Symptoms of breast cancer may include a change in breast shape, dimpling of the skin, a lump in the breast, fluid coming from the nipple, or a red scaly patch of skin. Advanced breast cancer symptoms may be bone pain, yellowish skin, shortness of breath or swollen lymph nodes. There are close to 20 sub-types of breast cancer.


Diabetes (or diabetes mellitus) describes a series of metabolic diseases in which the patient has high blood glucose level (blood sugar level), either because insulin production is too low or because the body’s cells do not respond accordingly to insulin, or both. Diabetes patients with high blood glucose will often experience polyuria (or frequent urination). The patients will also experience polydipsia (increased thirst) and polyphagia (increased hunger). Among the symptoms, which MEDoctor will help you to locate, we find overweightedness, obesity, central obesity (belly fat) and abdominal obesity. Diabetes is categorized in 2 types:
In type 1 diabetes, the body does not produce insulin (also called insulin-dependent diabetes, juvenile diabetes or early-onset diabetes). The patients usually develop type 1 diabetes before their 40th year, often in early adulthood or teenage years. Approximately 10% of all diabetes cases are type 1. Patients with type 1 diabetes will need to take insulin for their entire life to ensure adequate blood-glucose levels and following an adapted diet.
In type 2 diabetes, the body does not produce the sufficient quantity of insulin for proper function or the cells in the body do not react to insulin (insulin resistance). Approximately 90% of all cases of diabetes worldwide are of type 2. Some patients may manage to control their type 2 diabetes symptoms by following a healthy diet, by losing weight, by doing plenty of exercise and/or by monitoring their blood sugar levels. In any case, type 2 diabetes is a progressive disease and the patient will most certainly have to take insulin.

Skin cancer

Skin cancer defined as an uncontrolled growth of abnormal skin cells. In practice, this means that unrepaired DNA damage to skin cells, most often caused by excessive sun exposure (ultraviolet radiation or tanning beds). This causes mutations, or genetic damage, that lead the cells of the skin to reproduce rapidly and form tumors, which can be malignant. Skin cancer is the cancer with the highest frequency. Due to its location in the outer parts of the body, and not deeply embedded, it is also the easiest to cure. The main condition to meet for successful treatment is obviously early detection and treatment. This does not hinder that a skin cancer, when allowed to progress, can result in amputation and even death. With a 20% probability of developing a skin cancer over a lifetime, the number of new cases of skin cancer per year is higher than the combined incidence of cancers of the breast, lung, prostate and colon.

Heart disease

Cardiovascular disease (also called heart disease) is a category of diseases that will have the heart involved, the blood vessels (arteries, capillaries, and veins) involved or both. Cardiovascular disease is defined as any disease that adversely affects the cardiovascular system. The defined disease therefore ranges from principally cardiac disease, vascular diseases of the brain and kidney, and peripheral arterial disease. The causes of cardiovascular disease are of many kinds, but atherosclerosis, hypertension and age are the most common culprits. Among the known symptoms, we can clearly identify a faster heartbeat, shortness of breath, palpitations (irregular heart beats, or a “flip-flop” feeling in the chest), weakness or dizziness, nausea and sweating. Heredity, abundant fatty food and tobacco are the most common causes. Cardiovascular disease is the leading cause of mortality worldwide.

Liver disease

Many bodily functions from protein production and blood clotting to cholesterol, glucose and iron metabolism find their root in the functioning of the liver. Yet, a host of reasons of illnesses can affect the liver’s functions. In certain occurrences, scar tissue replaces normal liver cells. This is called cirrhosis and can be the consequence of chronic liver disease. MEDoctor’s symptom checker keep an extensive list of all the symptoms of liver disease. These may include weight loss, vomiting, nausea, yellow discoloration of the skin (better known as jaundice), weakness and fatigue. It is commonly accepted that more than 75% of the liver tissue needs to be affected before a real decrease in functions occur. Liver disease, nevertheless, is a broad terminology that covers all the potential impediments that cause the liver to not perform its designated functions. For all these reasons, the treatment of a particular liver disease depends on its specific origin. Liver disease is also described as hepatic disease.


Depression (also called major depression, major depressive disorder or clinical depression) is a disorder that causes a persistent feeling of sadness and loss of interest. It affects how one feels, thinks and behaves. A depressed person may have trouble performing normal activities. As depression is a persistent disease, it may require long-term or permanent treatment. Most people with depression feel better with medication, psychological counseling or both. Symptoms are also quite persistent and may include feelings of sadness, emptiness or unhappiness, angry outbursts, irritability or frustration, loss of interest or pleasure in normal activities, such as sex, sleep disturbances, including insomnia or sleeping too much, tiredness and lack of energy, changes in appetite, anxiety, agitation or restlessness, slowed thinking, speaking or body movements, feelings of worthlessness or guilt, thoughts of death, suicidal thoughts, suicide attempts or suicide.

Body aches

Body aches is generally defined as a series of aches, pains and discomfort in multiple areas of the body. Usually, the muscles and joints are the most prominent locations. The underlying causes determine the symptoms of generalized aches and pains. General symptoms may include muscle tenderness and aches and muscle cramps. A much longer list of symptoms is included in the MEDoctor symptom checker. If the patient has influenza or a viral infection, the most common symptoms may be body aches. Exercise, stress, depression and drug side effects can also cause body aches. Patient with generalized body aches and pains often have symptoms such as joint pains, neck pain, joint stiffness and back pain. Treatment for generalized aches and pains depends on the cause and may include non-steroidal anti-inflammatory medications, acetaminophen, warm baths and eventually physiotherapy.


Unusually frequent and liquid bowel movements are considered the common condition called diarrhea. The opposite condition is constipation. Diarrhea can be caised by many infectious and noninfectious causes. It can indicate an underlying infection showing that the body is not able to absorb some nutrients due to a problem in the bowels. The symptoms of an uncomplicated diarrhea can be, but not limited to abdominal bloating or cramps, thin or loose stools, watery stool, a sense of urgency to have a bowel movement, nausea and vomiting. A persistent diarrhea is uncomfortable and dangerous to the individual’s health. Drinking plenty of fluids to prevent dehydration and taking over-the-counter remedies can be the early treatments. People with diarrhea persisting for more than three days, particularly small children or elderly people, should seek immediate medical attention.

Kidney infection

Kidney infection belongs to the family of infections of the urinary system called urinary tract infections (UTIs). In general, the infection of the urethra, bladder, and prostate are known as lower urinary tract infection. When the infection ascends up to involve the kidneys, then it is call upper urinary tract infection. Infection of the kidney is also known as pyelonephritis. Urinary tract infections are very common and may affect 40% of women and 10% of men in their lifetime. Some of the more common symptoms of kidney infection are fever, generalized weakness, fatigue, a burning sensation with urination, chills, nausea, vomiting , dull pain on the side or lower back pain and dehydration. In addition, the signs that a doctor may look for in evaluating for urinary tract infection may include tenderness on the flanks immediately below the lowest rib (costo-vertebral angle tenderness), fever, physical evidence of dehydration and a rapid heart rate.


Asthma is a chronic lung disorder that is characterized by recurring episodes of airway obstruction, which includes labored breathing accompanied especially by wheezing and coughing and by a sense of constriction in the chest. It can be triggered by hyper-reactivity to various stimuli, as allergens or rapid change in air temperature. Symptoms vary from person to person, and may also change over time. The most common asthma symptoms are chest tightness, shortness of breath, wheezing and a dry, irritating and persistent cough, especially during the night and in the morning or with exercise.


Lymphoma (or Hodgkin’s disease) is characterized by symptoms commonly seen in other, less serious illnesses, such as influenza or other viral infection. These symptoms, in these cases, will not last very long. With lymphoma, these symptoms persist for a longer duration and often won’t go away. The most common symptom is a swelling in a lymph node, but without any pain. This appears first in the neck or armpits, the groin or the abdomen (usually with cramping or bloating). In addition, Hodgkin’s lymphoma symptoms primarily include persistent fatigue, fever together with chills, night sweats, weight loss, loss of appetite and skin itching.

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