Learn about perimenstrual asthma (PMA), which occurs when asthma symptoms get worse right before a menstrual period.

Hyperalgesia is when a person becomes more sensitive to pain. Changes in nerves and nerve pathways may lead to this overactive response in the body.

Lung (pulmonary) function tests are breathing tests done to see how well your child’s lungs are working. They help your child’s doctor diagnose lung problems, such as asthma or cystic fibrosis.

Dilation and evacuation (D&E) is a procedure to end a pregnancy in the second trimester. It may be done for many reasons.

Bronchial thermoplasty (BT) is a treatment for severe asthma. BT is most often used in people whose asthma can’t be controlled with medicines.

AERD is a chronic condition that is made up of 3 conditions: asthma, sinus disease, and a high sensitivity to aspirin, ibuprofen, and other nonsteroidal anti-inflammatory drugs (NSAIDs).

The perineum is the area of tissue between the vagina and anus. After childbirth, this area may be very sore.

Lymphedema is a buildup of lymph fluid that causes swelling. It can happen if lymph nodes or lymph vessels are removed or damaged.

If you're being treated for thyroid cancer, your health care provider may tell you to follow a low-iodine diet. You’ll need to be on this diet for about 2 weeks before you have radioactive iodine (RAI) therapy.

Adrenal insufficiency occurs when the adrenal glands don’t make enough of the hormone cortisol.