Dry and itchy pubic hair can be caused by dry eczema, ringworm, contact dermatitis, pubic lice or scabies. 1. Dry eczema: Inflammatory skin reaction caused by internal and external factors, which may lead to dry and flaky skin with itching in the pubic hair. 2. Ringworm: Fungal infection causes inflammatory skin reactions in the perineum, groin, anus, buttocks and other parts of the skin, which may also lead to dry and itchy pubic hair, accompanied by circular erythema of the skin, hyperpigmentation, and flaking. 3. Contact dermatitis: wearing chemical fiber underwear or contact with soap, shower gel and other irritating or allergic products, resulting in contact with the site of the inflammatory reaction, may also lead to dry and itchy pubic hair, and some may also cause skin erythema, papules, blisters and other phenomena. 4. Pubic lice or scabies: belong to the pubic lice or scabies mites bite the skin caused by itching, can also lead to dry itchy pubic hair symptoms, itching is more intense at night, scabies patients can appear skin papules, nodules, tunnels and other symptoms. Dry itchy pubic hair may have other reasons, it is recommended to go to the hospital in time to check, follow the doctor’s instructions for treatment.