The hardening and thickening of the skin of the thumb may be caused by physiological factors, vitamin deficiency, callus and so on.
1. Physiological factors: if the patient’s thumb skin constantly repeated friction or cold, damp and other environmental stimuli, resulting in patients with cuticle hardening and thickening of the situation.
2. Vitamin deficiency: if the patient’s body is malnourished, lack of vitamin B, vitamin A, etc., it will lead to hardening and thickening of the skin of the patient’s thumb.
3. Callus: commonly known as “callus”, is the skin long-term pressure and friction caused by the hand, foot skin localized flat keratin hyperplasia. Most patients have no special obvious symptoms, a few patients may have pain when walking or pressure.
If the symptoms continue to develop and accompanied by discomfort, it is recommended that patients go to a regular hospital in a timely manner, under the guidance of the doctor for relevant examinations, according to the specific results of the examination, to take targeted treatment.