Lactose intolerance is a common problem where a person's digestive system cannot digest lactose. Signs and symptoms include:
There are several tests to diagnose lactose intolerance. Treatment is generally made with dietary changes, supplements, and adaptation to small amounts of milk.Read more: Lactose Intolerance Article
Multimedia: Slideshows, Images & Quizzes
What's Causing Your Abdominal Pain?
Abdominal pain is a symptom of many possible conditions including appendicitis, ulcers, irritable bowel syndrome, indigestion,...
Super Tips to Boost Digestive Health: Bloating, Constipation, and More
Upset stomach? Some foods may be the culprits, and bad habits may be to blame. Treat your body right with these simple nutrition...
Digestive Disorders: Worst Foods for Digestion
Discover which foods to avoid in order to prevent diarrhea and digestive problems. Find out which foods can trigger diarrhea and...
What Is Osteoporosis? Treatment, Symptoms, Medication
Osteoporosis is a disease characterized by low bone mass and density. Osteoporosis causes symptoms of weak, thin, fragile bones....
Digestive Health: Why Am I Bloated?
Bloating is a sign and symptom of gas in the stomach or GI tract. Certain foods or health problems like constipation may cause...
Stomach Pain Quiz: Nausea & Other Causes
Tummy Troubles? Get a better idea of what's causing the nausea, vomiting, bloating, gas, constipation, diarrhea, pain, and other...
Picture of Stomach
The stomach is a muscular sac located on the left side of the upper abdomen. See a picture of the Stomach and learn more about...
Vegetarian Diet: Benefits, Meat Substitutions, and Meal Plans
Vegetarian diet plans have benefits like weight loss and reduced risk of heart disease, diabetes, and cancer. Vegetarian diet...
Related Disease Conditions
What Causes Abdominal Pain?
Abdominal pain can have many causes that range from mild to severe. Some of these causes include bloating, gas, colitis, endometriosis, food poisoning, GERD, IBS (irritable bowel syndrome), ovarian cysts, abdominal adhesions, diverticulitis, Crohn's disease, ulcerative colitis, gallbladder disease, liver disease, and cancers. Signs and symptoms of the more serious causes include dehydration, bloody or black tarry stools, severe abdominal pain, pain with no urination or painful urination. Treatment for abdominal pain depends upon the cause.
Irritable Bowel Syndrome (IBS)
Irritable bowel syndrome (IBS) is a GI (gastrointestinal) disorder with signs and symptoms that include abdominal pain, bloating, increased gas (flatulence), abdominal cramping, diarrhea, constipation, and food intolerance.Two new tests are now available that may help diagnose irritable bowel syndrome with diarrhea and constipation (IBS-M) irritable bowel syndrome with diarrhea (IBS-D), and irritable bowel syndrome with constipation (IBS-C). Treatment for IBS includes diet changes, medications, and other lifestyle changes to manage symptoms.
Intestinal Gas (Belching, Bloating, Flatulence)
Gas (intestinal gas) means different things to different people. Everyone has gas and eliminates it by belching, burping, or farting (flatulence). Bloating or abdominal distension is a subjective feeling that the stomach is larger or fuller than normal. Belching or burping occurs when gas is expelled from the stomach out through the mouth. Flatulence or farting occurs when intestinal gas is passed from the anus. Causes of belching or burping include drinking too rapidly, anxiety, carbonated drinks, habit, and swallowing air. Learn about causes of intestinal gas, foods that cause gas and bloating, treatments that reduce excessive gas and soothe gas pain, and much more.
Diarrhea is a change is the frequency and looseness of bowel movements. Symptoms associated with diarrhea are cramping, abdominal pain, and the sensation of rectal urgency. Causes of diarrhea include viral, bacterial, or parasite infection, gastroenteritis, food poisoning, and drugs. Absorbents and anti-motility medications are used to treat diarrhea.
Indigestion (Dyspepsia, Upset Stomach Pain)
Indigestion (dyspepsia) can be caused by diseases or conditions that involve the gastrointestinal (GI) tract, and also by some diseases and conditions that do not involve the GI tract. Indigestion can be a chronic condition in which the symptoms fluctuate in frequency and intensity. Signs and symptoms that accompany indigestion include pain in the chest, upper abdominal pain, belching, nausea, bloating, abdominal distention, feeling full after eating only a small portion of food, and rarely, vomiting.
Ulcerative Colitis Diet Plan
An ulcerative colitis diet plan can help a person with the disease avoid foods and drinks that trigger flares. There also are foods that can soothe ulcerative colitis symptoms during a flare. Types of ulcerative colitis plans include a high-calorie diet, a lactose-free diet, a low-fat diet, a low-fiber diet (low-residue diet), or a low-salt diet. Self-management of ulcerative colitis using healthy lifestyle habits and a nutrient rich diet can be effective in management of the disease. Learn what foods to avoid that aggravate, and what foods help symptoms of the disease and increase bowel inflammation.
The Digestion Process (Parts, Organs, and Functions)
Digestion is the complex process of turning the food you eat into the energy you need to survive. The digestive process also involves creating waste to be eliminated, and is made of a series of muscles that coordinate the movement of food. Learn more about digestion and the body parts that make it possible, including the mouth, pharynx, esophagus, stomach, small intestine, colon, rectum, anus, pancreas, liver, and gallbladder.
Nausea and Vomiting
Nausea is an uneasiness of the stomach that often precedes vomiting. Nausea and vomiting are not diseases, but they are symptoms of many conditions. There are numerous cases of nausea and vomiting. Some causes may not require medical treatment, for example, motion sickness, and other causes may require medical treatment by a doctor, for example, heart attack, lung infections, bronchitis, and pneumonia. Some causes of nausea and vomiting may be life-threatening, for example, heart attack, abdominal obstruction, and cancers. Treatment of nausea and vomiting depends upon the cause.
Crohn's disease is a chronic inflammatory disease, primarily involving the small and large intestine, but which can affect other parts of the digestive system as well. Abdominal pain, diarrhea, vomiting, fever, and weight loss are common symptoms.
Bad breath can result from poor oral hygiene habits and may be a sign of other health problems. Bad breath, also called halitosis, can be made worse by the types of food eaten and other unhealthy lifestyle habits.
Birth Control Options
Birth control is available in a variety of methods and types. The method of birth control varies from person to person, and their preferences to either become pregnant or not. Examples of barrier methods include barrier methods (sponge, spermicides, condoms), hormonal methods (pill, patch), surgical sterilization (tubal ligation, vasectomy), natural methods, and the morning after pill. Side effects and risks of each birth control option should be reviewed prior to using any birth control method.
SIBO (Small Intestinal Bacterial Overgrowth)
Small intestinal bacterial overgrowth (SIBO) refers to a condition in which abnormally large numbers of bacteria (at least 100,000 bacteria per ml of fluid) are present in the small intestine, but they are more like the bacteria that are found in the colon. There are many conditions associated with SIBO, including: Diabetes Scleroderma Crohn's disease Irritable bowel syndrome (IBS) It has been theorized that SIBO may be responsible for the symptoms of at least some patients with irritable bowel syndrome. Symptoms of SIBO include: Excess gas Abdominal bloating Abdominal pain Treatment for SIBO can include: Antibiotics Probiotics Low FODMAP Diet
Learn about osteoporosis, a condition characterized by the loss of bone density, which leads to an increased risk of bone fracture. Unless one experiences a fracture, a person may have osteoporosis for decades without knowing it. Treatment for osteoporosis may involve medications that stop bone loss and increase bone strength and bone formation, as well as quitting smoking, regular exercise, cutting back on alcohol intake, and eating a calcium- and vitamin D-rich balanced diet.
Celiac disease is a condition in which a person has inflammation of the small intestinal mucosa when exposed to gluten in the diet. Symptoms of celiac disease include bloating, nausea, diarrhea, and abdominal discomfort. Treatment is a gluten free diet. Some individuals may have refractory celiac disease in which they do not respond to a gluten free diet.
The most common food allergies are to eggs, nuts, milk, peanuts, fish, shellfish, strawberries and tomatoes. Symptoms and signs of a food allergy reaction include nausea, vomiting, diarrhea, abdominal pain, itching, hives, eczema, asthma, lightheadedness, and anaphylaxis. Allergy skin tests, RAST, and ELISA tests may be used to diagnose a food allergy. Though dietary avoidance may be sufficient treatment for mild allergies, the use of an Epipen may be necessary for severe food allergies.
Juvenile Bone Health
Setting a good example for your children when it comes to diet and exercise will help them to make healthy decisions about nutrition and fitness. Eating calcium-rich foods and performing weight-bearing exercise will help your children prevent osteoporosis and fractures later in life.
Local ResourcesFind a local Gastroenterologist in your town
Treatment & Diagnosis
Medications & Supplements
Prevention & Wellness
- Health Tip: Foods With Lactose
- Are 'Inactive' Ingredients in Your Drugs Really So Harmless?
- How to Get Your Calcium If You're Lactose-Intolerant
- Health Tip: Understanding Lactose-Tolerance Testing
- Health Tip: Recognizing Symptoms of Lactose Intolerance
- Stomach Troubles Not Linked to Autism, Study Finds
- Are the Lactose Intolerant Safer From Some Cancers?
- Raised Risk of Heart Trouble Seen in Celiac Disease Patients
- Health Tip: Lactase May Be Hiding in Food
- Health Tip: Lactose May Be Hiding in Food
- Health Tip: Signs That May Warn of Lactose Intolerance
- Health Tip: If You're Lactose Intolerant
- Raw Milk Causes Most Illness From Dairy Products: CDC
- Celiac, Crohn's Disease Share Common Genetic Links
- Lactose Intolerance: Too Little Is Known
Digestive Disorders Resources
Subscribe to MedicineNet's General Health Newsletter