Differential Diagnosis for Itchy Rash around Umbilicus with Discharge
Single most likely diagnosis
- Tinea cruris (jock itch): This is a common fungal infection that can cause an itchy, ring-shaped rash around the umbilicus, groin, and thighs. The presence of discharge may indicate a secondary bacterial infection.
Other Likely diagnoses
- Intertrigo: A skin condition caused by friction and moisture, leading to inflammation and infection in skin folds, including the umbilical area. It can be itchy and may have a discharge.
- Eczema (atopic dermatitis): A chronic skin condition characterized by itchy, inflamed skin, which can occur around the umbilicus and may have a discharge if infected.
- Contact dermatitis: An allergic or irritant reaction to substances like soaps, detergents, or clothing, causing an itchy rash and possible discharge around the umbilicus.
Do Not Miss (ddxs that may not be likely, but would be deadly if missed.)
- Cutaneous tuberculosis: A rare skin infection that can cause lesions, ulcers, or rashes, including around the umbilicus, and may have discharge. It requires prompt diagnosis and treatment to prevent serious complications.
- Necrotizing fasciitis: A life-threatening bacterial infection that can cause severe pain, swelling, and discharge, and may initially present with a rash around the umbilicus.
Rare diagnoses
- Zinc deficiency: A nutritional deficiency that can cause skin lesions, including around the umbilicus, and may be accompanied by itching and discharge.
- Pemphigus: A rare autoimmune disease that causes blistering of the skin, which can occur around the umbilicus and may have a discharge.
- Cutaneous lymphoma: A type of cancer that can cause skin lesions, including around the umbilicus, and may be itchy with discharge.