What diseases cause dry mouth and fatigue?

1. Dehydration in children

Dehydration happens when the body does not have enough fluid to function normally. This condition of dehydration in children is quite common, and its complications are more serious than in adults because children lose water much faster. Children can lose a lot of water and salt due to fever, diarrhea, vomiting, sweating, or difficulty drinking water. Most cases of dehydration are mild. However, untreated dehydration in children can be severe or even life-threatening. Always give them extra fluids if they vomit, have diarrhea, or are out in the heat.

Symptoms of dehydration in children include: sticky or dry mouth, fatigue, crying without tears, sunken eyes, sunken fontanelle (a soft spot on the head of a newborn), less urination - less than 6 wet diapers per day in children, dark yellow urine, and rapid heartbeat; in more severe cases, they might be in a coma, have difficulty breathing, and have no response when being touched.

2. Dehydration in adults

Dehydration in adults happens when the water intake is less than it excreted. Dehydration in adults is common in people aged 60 and above. Usually, we lose water naturally from urine, sweat, and even breathing, and the body gets water back through food and water. Dehydration becomes a serious problem when you lose too much water in a short period, and your body can't compensate for it - for example, when vomiting or diarrhea, excessive sweating from working out on a hot day without drinking enough water.

Dehydration can cause low blood pressure, weakness, dizziness, dry mouth, fatigue, and even nausea. The greater the fluid deficit, the greater the risk of serious complications. Dehydration can lead to problems such as kidney failure, confusion, coma, or shock.

3. Drug reactions or side effects

All medications and even natural remedies have side effects that vary in individuals. Some medications' side effects include nausea, vomiting, dry mouth, fatigue, upset stomach, weakness, dizziness, seizures, drowsiness, hyperactivity and allergic reactions, rashes, and even shock. Depending on the type of medication and dosage, there are other side effects. Read the leaflet for side effects or ask your doctor for advice on each medicine before taking it.

4. Iron poisoning

Iron poisoning happens when someone takes too much iron. It is most common in children when they accidentally take large amounts of vitamins. Taking an excessive amount of iron can cause vomiting, diarrhea, stomach pain, and dehydration. With an excessive dose of iron, it can even lead to death.

5. Multiple sclerosis (MS)

MS is a disease that affects the central nervous system, which includes the brain, spinal cord, and optic nerves. People with MS can experience a wide range of symptoms and may be affected differently at different stages of their lives.

MS causes problems with balance, speech, and movement, such as dry mouth, tiredness, numbness or tingling, muscle weakness, difficulty with balance and coordination, difficulty speaking, tremors, dizziness, pain, vision problems, bladder and bowel problems, sexual problems, hearing loss, personality changes and depression, difficulty concentrating or remembering, poor judgment, depression, and sometimes paralysis.

6. Chemotherapy for head and neck cancer causes dry mouth and fatigue

The salivary glands can be temporarily or permanently damaged when treating head and neck cancer. Some chemotherapy drugs can reduce saliva production, which can be reverses when we stop taking the medication.

7. Diabetes

Diabetes can make you feel hungry and tired or have your mouth dry and thirsty. You may urinate more often than usual and experience blurred vision.

8. Anemia

Anemia can cause dry mouth, fatigue, pale skin, weakness, dizziness, headaches, chest pain, shortness of breath, and unusually increased appetite.

9. Depression in adults

Symptoms of depression include a low or depressed mood, which may accompany dry mouth, fatigue, anhedonia (loss of pleasure in previously enjoyed activities), hopelessness, anxiety, tension, insomnia, frustration, anger, or irritability, decreased or increased appetite, lack of motivation, difficulty sleeping or sleeping too much, and suicidal ideation.

10. Mumps

Mumps is a viral infection that causes painful, swollen salivary glands on one or both sides. This affects the ability to produce saliva, leading to dry mouth, fatigue, facial pain, muscle pain, sore throat, fever, and headache. Painful and swollen testicles can also occur in males after puberty.

11. Sarcoidosis

Sarcoidosis is a rare disease that can cause swelling and hard lumps in the lymph nodes and organs. It most commonly affects the lungs, but it can also affect the eyes, liver, skin, heart, and brain. Scientists still do not know what causes Sarcoidosis.

Symptoms may include wheezing, coughing, shortness of breath, chest pain, fever, night sweats, fatigue, feeling dry in the mouth, weight loss, swollen lymph nodes, rash or skin lesions, red or swollen eyes, headache, seizures, and pain and stiffness in the joints.

12. High monocyte count

Symptoms of having a high monocyte count include extreme fatigue, sore throat, dry mouth, fever, rash, loss of appetite, muscle pain, swollen lymph nodes, and spleen.

13. Sjogren's syndrome

Sjogren's syndrome is an autoimmune disorder that often causes dry eyes, dry vagina, dry skin, dry mouth, fatigue, and joint pain.

14. Xerostomia syndrome

People with xerostomia have a chronic feeling of dryness in the mouth. Symptoms of dry mouth syndrome include a sticky feeling in the mouth, dry and cracked lips and tongue, burning in the mouth, sore throat, bad breath, loss of taste, difficulty chewing or swallowing, difficulty speaking, tooth decay, mouth sores or infections, fatigue, and nutritional problems.

15. Viral syndrome

Viral syndrome happens when a person has symptoms of a viral illness, but the type of virus causing the symptoms is not identified. Symptoms may include sore throat, swollen lymph nodes, fever, fatigue, headache, muscle aches, cough, runny nose, stuffy nose, diarrhea, nausea, and vomiting.

16. Heat exhaustion

Heat exhaustion causes excessive thirst, dry mouth, fatigue, excessive sweating, pale, cool, clammy skin, muscle cramps, and other symptoms.

17. Vitamin B12 deficiency

Vitamin B12 deficiency can occur due to a lack of vitamin B12 in the diet or because the body cannot absorb the vitamin properly. It leads to anemia because the body does not have enough vitamin B12 to produce red blood cells. In addition, some diseases, such as Crohn's disease, celiac disease, pernicious anemia, and alcoholism, can make it difficult for the body to absorb enough vitamins.

Symptoms of vitamin B12 deficiency include dry mouth, fatigue, pale skin, weakness, drowsiness, numbness, weakness of the arms and legs, depression, mental confusion and paralysis.

In addition to the above conditions, other conditions that can cause dry mouth and fatigue include allergic rhinitis, acute/chronic sinusitis, arrhythmia, sleep deprivation, acute stress disorder, sleep apnea, cystic fibrosis, atrial fibrillation, eating disorders, emphysema, glomerulonephritis, hepatitis A, B, C, hypotension, Lyme disease, chronic fatigue syndrome (CFIDS), congestive heart failure, tuberculosis, aspirin poisoning, carbon monoxide poisoning, hypothyroidism (in adults), bipolar disorder, malnutrition, cocaine addiction, over-exercise, underweight, typhoid fever, mesenteric lymphadenitis, nasopharyngeal cancer, etc.

Although the above conditions can be considered a guide to educating yourself about the conditions associated with dry mouth and fatigue, they are not a substitute for a diagnosis from a qualified medical professional. Therefore, to avoid causing your health to decline, go to a medical facility for consultation and examination to discover the cause and receive advice on treatment methods.

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Reference source: webmd.com