The unevenness of the toenail thumb with horizontal lines is considered to be caused by fungal infection, onychomycosis, nail trauma and other reasons.
1. Onychomycosis: If the toenail thumb is infected with fungus leading to onychomycosis, etc., which causes abnormal growth of the nail plate structure, it may lead to unevenness of the big toe nail with horizontal lines.
2. onychomycosis: patients with onychomycosis of the toenail thumb may have symptoms such as redness, swelling, heat and pain locally. Inguguinitis is easy to damage the tissues around the nail, leading to changes in the shape of the big toe nail, which can be manifested as unevenness of the big toe nail with horizontal lines and thickening of the nail plate.
3. Nail trauma: If the big toe nail is damaged, it will lead to nail pain, swelling, etc., and even lead to nail deformation, and the big toe nail can appear uneven horizontal lines.
If the toenail big toe thumb has uneven horizontal lines, the patient should consult a doctor in time to clarify the cause of the disease, and follow the doctor’s instructions for targeted treatment.