Classification of rice grain diseases
There are two types of rice grains: regular rice grains and flat rice grains.
Warts are often caused by HPV types 2, 4, 27, 29. The basic lesion of the disease is a rough keratin papule measuring from 0.3 – 1 cm, with normal skin color. The most common location of this type of wart is skin prone to trauma such as the extensor surface of the interphalangeal or metatarsal joints or in the pressure area of the foot.
Flat warts: Symptoms are small papules ranging from 1 – 5mm in size, round or polygonal, skin-colored or dark. They can stand alone, in groups, sometimes in strips (Koebner sign). The most common location of this type of rice grain is on the face, arms and trunk.
Symptoms of illness
Common warts: Lesions are lesions that protrude from the surface, are hemispherical or flat in shape with a diameter of a few millimeters to 1-2cm, in the center of each wart may be concave.
The surface of rice grains often becomes thorny, even forming small grooves. Each cluster of keratoses follows each other. The number varies from a few to a few dozen, sometimes gathering a lot.
The most common location of rice grains is usually on the back of the hand and fingers, rarely on the palm of the hand. Warts on the hands are caused by HPV2 and HPV1.
Flat warts: Mainly caused by HPV types 3.10. Lesions of this type are small papules that are rarely raised, yellow or light yellow in color, with a shiny, thin surface, or concentrated in strips or patches and cause itching.
Common locations of flat rice grains are on the back of the hand, fingers, arms, knees and front of the legs. This disease is common in immunocompromised people. In this patient, the lesion was raised or large in size and was normal.
These warts persist for months or years, and in many cases there are signs of inflammation around them or rings of hypopigmentation.
Treatment of wart disease
Although rice grains do not affect life, they sometimes affect work and daily activities. Currently, there is no treatment method that can guarantee cure or prevent recurrence, so treatment only aims to create “rice-free” periods as long as possible without causing scarring.
In immunocompromised patients, the aim of treatment is to control the size and number of warts.
Researchers have found a number of methods to help remove rice grains: Using liquid nitrogen to cause depigmentation. This method is very effective for cases of dry warts growing on the face, instep, and penis.
Warts on the soles of the feet can be treated by cutting off the wart, then applying 40% salicylic acid, then bandaging and replacing it regularly for 3-5 days. Repeating this every week or every month will help completely eliminate rice grains. This method is safe, effective and usually has no side effects.
In addition, patients can use special cream or gel to apply on the rice grains to help remove them. Furthermore, modern CO2 laser therapy is effective in treating recurrent warts, plantar warts or undernail warts.
Measures to prevent rice grain disease
First of all, the patient must not scratch, scratch or otherwise damage the rice grain. Warts in the anogenital area can cause sexually transmitted infections, so condoms must be used during sex to avoid the risk of disease transmission.
Besides, personal hygiene must be very clean, eating must be hygienic and full of nutrients.
When you have rice grains, do not arbitrarily pick them off, peeling them can cause damage and can easily cause infection. If you have warts, it’s best to see a dermatologist for treatment as soon as possible.
The information provided in Hong Ngoc General Hospital’s article is for reference only and is not a substitute for medical diagnosis or treatment.