Scientists have discovered a weird and wacky quirk regarding how poison frogs have sex. Several species of male poison frogs use a "swollen fingertip" to pass pheromones into the female during sex, ...

The lymph nodes in your neck and other parts of your body can be swollen for years, but this does not always mean it is a sign of cancer. You might have a common cold, throat infection, or another ...

Swollen lymph nodes can be a sign of inflammation due to an infection. Medications can often provide relief, but natural remedies, such as basil, apple cider vinegar, and chamomile tea, may help treat ...

Usually, swollen chest lymph nodes are too deep in the chest for a person to feel them. Any swollen lymph nodes in the chest appear on imaging scans. Swelling can indicate an underlying condition.