Cellulitis is a bacterial skin infection involving the deep layers of skin and subcutaneous tissue, causing redness, swelling, pain, and warmth. It is a medical emergency if untreated.

Sciatica is a condition characterized by pain radiating along the sciatic nerve, which runs from the lower back through the hips, buttocks, and down each leg. It is often a symptom of an underlying spinal issue such as a herniated disc or spinal stenosis.

Sexually transmitted diseases (STDs), also known as sexually transmitted infections (STIs), are infections that are spread through sexual activity, including vaginal, anal, and oral sex.