Mark Gurarie

Variants of the original COVID-19 virus continue to circulate. Each of the seven variants has similar symptoms, but there are unique differences.

Medically reviewed by Nicholas R. Metrus, MD Cervical vertigo , also known as cervicogenic dizziness, leads to disorientation, balance loss, headache, neck pain, and limited range of motion.

Virojt Changyencham / Getty Images Medically reviewed by Jay N. Yepuri, MD

C. diff (Clostridiodes difficile) are bacteria that cause diarrhea and inflammation in the colon. Antibiotics are the main treatment, but surgery is an option for more severe cases.

Dry skin, underlying health conditions, insect bites, and allergies can all cause an itchy neck. Home remedies and medications can help relieve symptoms.

PeopleImages / Getty Images Medically reviewed by Brendan Camp, MD A wide range of conditions can cause an itchy neck—such as eczema, psoriasis, and diabetes.

Medically reviewed by Johnstone M. Kim, MD A skin rash around your eyes, or eyelid dermatitis , can signify various conditions.

Medically reviewed by Matthew Wosnitzer, MD Prostate cancer is the second most common cancer in people assigned male at birth.

Mesothelioma is an aggressive, rare cancer that often occurs due to exposure to asbestos—a dangerous mineral found in many household products.

Cholecystitis is a condition that occurs when your gallbladder becomes inflamed. Common symptoms include abdominal pain, bloating, and nausea.