@medicalstudent.io on Instagram: "Painful underarm lumps are something many people brush off as razor bumps or minor irritation, but they can sometimes be your body’s way of signaling that something deeper is going on, from infected sweat glands and swollen lymph nodes to conditions like hidradenitis suppurativa that deserve proper attention. Ignoring recurring or worsening lumps, especially when they are tender, red, warm, or slow to heal, can allow inflammation or infection to progress and imp