A hard lump has developed at the root of the thigh, which is painful when pressed.

A hard lump in the groin area that hurts when pressed may be caused by local friction, insect bites, sebaceous cysts, lymphadenitis, or folliculitis. Symptoms can be improved through reducing friction, proper local care, and medication. If the lump enlarges, pain worsens, or is accompanied by fever, prompt medical attention is necessary.

1. Local friction irritation: Wearing tight clothing for prolonged periods can cause repeated friction in the groin area, leading to tissue hyperplasia and formation of a hard, painful lump. Pressure on the lump pulls surrounding tissues, causing pain. It is recommended to switch to loose, breathable cotton clothing, avoid strenuous physical activity to reduce friction, and keep the area clean and dry.

2. Insect bites: Insect bites during summer can introduce saliva that triggers a localized allergic reaction in the groin, resulting in a hard lump accompanied by itching. Pain increases upon pressing due to inflammatory stimulation. Clean the bite area with soapy water, apply a mild anti-itch ointment, and avoid scratching to prevent infection.

3. Sebaceous cyst: Blockage of sebaceous gland ducts leads to accumulation of sebum, forming a cystic hard lump. When infected, it becomes painful upon pressure and may be accompanied by redness, swelling, and increased skin temperature. Under medical guidance, medications such as Cefradine Capsules, Mupirocin Ointment, and iodophor may be used to relieve symptoms.

4. Lymphadenitis: Infection in nearby tissues can cause swelling of lymph nodes in the groin, forming a hard, tender lump. Pressing causes significant pain, possibly accompanied by low-grade fever and fatigue. Patients may take Amoxicillin Capsules, Roxithromycin Dispersible Tablets, or Ibuprofen Sustained-Release Capsules as directed by a physician to alleviate discomfort.

5. Folliculitis: Bacterial infection of hair follicles causes inflammation, forming hard lumps centered around follicles. These are painful when pressed and may develop white pustules at the tip. Under medical supervision, Fusidic Acid Cream, Cefaclor Capsules, and Hydrogen Peroxide Solution may be used to improve symptoms.

Maintain cleanliness and dryness of the groin area, wear loose and breathable clothing, avoid squeezing or rubbing the lump, follow a light diet avoiding spicy and irritating foods, maintain regular sleep patterns, and strengthen overall health to promote symptom relief and recovery.