Your peritoneum is the tissue that lines your abdominal wall and covers most of the organs in your abdomen. A liquid, peritoneal fluid, lubricates the surface of this tissue.

Disorders of the peritoneum are not common. They include:

• Peritonitis - an inflammation of the peritoneum
• Cancer
• Complications from peritoneal dialysis

Your doctor may use imaging tests or lab tests to analyze the peritoneal fluid to diagnose the problem. Treatment of peritoneal disorders depends on the cause.

Pets can add fun, companionship and a feeling of safety to your life. Before getting a pet, think carefully about which animal is best for your family. What is each family member looking for in a pet? Who will take care of it? Does anyone have pet allergies? What type of animal suits your lifestyle and budget?

Once you own a pet, keep it healthy. Know the signs of medical problems. Take your pet to the veterinarian if you notice:

• Loss of appetite
• Drinking a lot of water
• Gaining or losing a lot of weight quickly
• Strange behavior
• Being sluggish and tired
• Trouble getting up or down
• Strange lumps

Pneumocystis jirovecii is a fungus that is common throughout the world. Many people have been exposed to it as children. Some people have the fungus in their lungs. If you are healthy, it usually will not make you sick. But it can make you sick if you have a weakened immune system, for example if you:

• Have HIV
• Have an autoimmune disease
• Have cancer
• Have a chronic (long-lasting) lung disease
• Had an organ or bone marrow transplant
• Take medicines which weaken your immune system, such as chemotherapy and steroids

Pneumocystis jirovecii can spread from person to person through the air. You can spread it to others even if it isn't making you sick.

The most common type of infection that Pneumocystis jirovecii causes is pneumocystis pneumonia (PCP). Pneumonia is an infection in one or both of the lungs. It causes the air sacs of the lungs to fill up with fluid or pus.

The symptoms of PCP can develop over several days or weeks. They may include:

• Fever
• Cough
• Trouble breathing
• Chest pain
• Chills
• Fatigue

Contact your healthcare provider if you have symptoms that you think are related to PCP. Since PCP can be life-threatening, it's important to get early treatment.

To find out if you have PCP, your provider will take a sample of fluid or tissue from your lungs. You may cough up the sample (called sputum), have fluid collected during a bronchoalveolar lavage, or have tissue taken with a biopsy. They will send the sample to the lab to check for Pneumocystis.

The treatment for PCP is with antibiotics, either by mouth or intravenously (by IV). You need to take them for about 3 weeks. If you have a severe case of PCP, you might need treatment in the hospital.

There is no vaccine to prevent PCP. Some people who are at high risk of getting PCP may need to take antibiotics to prevent it.

Centers for Disease Control and Prevention

Some medicines are safe to take during pregnancy, but many are not. If you're pregnant, check with your health care provider before taking any medicine. Some medicines can harm your developing fetus. This includes:

• Prescription drugs
• Over-the-counter medicines
• Herbs and supplements

Always talk to your provider before you stop or start any medicine. You may take medicine to treat a health problem you had before pregnancy. Not using the medicine that you need may be more harmful to you and your fetus than using the medicine. For example, many pregnant women take prescription medicines for health problems like diabetes, asthma, seizures, and heartburn. The decision about whether to take a certain medicine should depend on the risks and benefits that go with it. You and your provider should make this choice together.

If you're pregnant, you shouldn't take regular vitamins. They may have too much or too little of the vitamins you need. For example, everyone needs folic acid, a type of B vitamin. But if you're trying to get pregnant, it's really important. Getting enough folic acid before and during pregnancy can prevent birth defects of the brain or spine. During your prenatal care visits, your provider will talk about prenatal vitamins. These are a special kind of vitamin to take during pregnancy.

Food and Drug Administration

You may need to take medicines while you are pregnant. But not all medicines are safe during pregnancy. Many medicines carry risks for you, your baby, or both. Opioids, especially when misused, can cause problems for you and your baby while you are pregnant.

Opioids, sometimes called narcotics, are a type of drug. They include strong prescription pain relievers such as oxycodone, hydrocodone, fentanyl, and tramadol. The illegal drug heroin is also an opioid.

A health care provider may give you a prescription opioid to reduce pain after you have had a major injury or surgery. You may get them if you have severe pain from health conditions like cancer. Some providers prescribe them for chronic pain.

Prescription opioids used for pain relief are generally safe when taken for a short time and as prescribed by your provider. However, people who take opioids are at risk for opioid use disorder (OUD) and overdose. These risks increase when these medicines are misused. Misuse can include taking your opioid medicines in greater amounts or more often than you are supposed to, using them to get high, or taking someone else's opioids.

Taking opioids during pregnancy can cause problems for you and your baby. The possible risks include:

• Neonatal abstinence syndrome (NAS) - withdrawal symptoms such as irritability, seizures, vomiting, diarrhea, fever, and poor feeding in newborns
• Neural tube defects - birth defects of the brain, spine, or spinal cord
• Congenital heart defects - problems with the structure of the baby's heart
• Gastroschisis - a birth defect of the baby's abdomen, where the intestines stick outside of the body through a hole beside the belly button
• Loss of the baby, either miscarriage (before 20 weeks of pregnancy) or stillbirth (after 20 or more weeks)
• Preterm delivery - a birth before 37 completed weeks of pregnancy
• Stunted growth, leading to low birthweight
• Problems with the placenta (the organ that brings oxygen and nutrients to the baby)

If your provider suggests that you take opioids during pregnancy, you should first discuss the risks and benefits. Then if you both decide that you need to take the opioids, you should work together to try to minimize the risks. Some of the ways to do this include:

• Taking them for the shortest time possible
• Taking the lowest dose that will help you
• Carefully following your provider's instructions for taking the medicines
• Contacting your provider if you have side effects
• Going to all your follow-up appointments

If you have been taking opioids and you become pregnant, contact your provider. But don't stop taking the opioids on your own. If you suddenly stop taking opioids, it could cause severe health problems for you or your baby. In some cases, stopping suddenly during pregnancy may be more harmful than taking the medicines.

If you regularly take opioid medicines, you may be able to breastfeed. It depends on which medicine you are taking. But you should not breastfeed if you have HIV or take illegal drugs. Check with your provider before breastfeeding.

If you are pregnant and have an opioid use disorder, do not stop taking opioids suddenly. Instead, see your provider so you can get help. The treatment for opioid use disorder (OUD) is called medication for opioid use disorder (MOUD). For MOUD during pregnancy, providers prescribe either buprenorphine or methadone. These medicines can reduce your cravings and help prevent withdrawal.

Counseling, including behavioral therapies, can also help you to change your attitudes and behaviors related to drug use and build healthy life skills.